AKOJ Problem1100-1199 C#代码汇总

C# ACM Code

1100 连续和

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1100 {
    class Program {
        static void Main(string[] args) {
            long n = Convert.ToInt64(Console.ReadLine());
            long sum = (1 + n) * n / 2;
            Console.WriteLine("{0}", sum);
        }
    }
}

1101 正弦和余弦

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1101 {
    class Program {
        static void Main(string[] args) {
            int x = int.Parse(Console.ReadLine());
            double PI = Math.Atan(1.0) * 4.0;
            double s = Math.Sin(x * PI / 180);
            double b = Math.Cos(x * PI / 180);
            Console.WriteLine(s.ToString("0.000") + " " + b.ToString("0.000"));
        }
    }
}

1102 两点距离

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1102 {
    class Program {
        static void Main(string[] args) {
            string[] values = Console.ReadLine().Split(' ');
            double x1 = double.Parse(values[0]), y1 = double.Parse(values[1]);
            double x2 = double.Parse(values[2]), y2 = double.Parse(values[3]);
            double l = Math.Sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
            string s = l.ToString("0.000");
            Console.WriteLine(s);
        }
    }
}

1103 偶数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1103 {
    class Program {
        static void Main(string[] args) {
            int n = Convert.ToInt32(Console.ReadLine());
            if (n % 2 == 0)
                Console.WriteLine("yes");
            else
                Console.WriteLine("no");
        }
    }
}

1104 打折

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1104 {
    class Program {
        static void Main(string[] args) {
            int n = Convert.ToInt32(Console.ReadLine());
            if (n >= 4) {
                double s = n * 95 * 0.85;
                string res = s.ToString("0.00");
                Console.WriteLine(res);
            } else {
                Console.WriteLine("{0}", n * 95);
            }
        }
    }
}

1105 绝对值

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1105 {
    class Program {
        static void Main(string[] args) {
            double n = Convert.ToDouble(Console.ReadLine());
            if (n >= 0) {
                string str = n.ToString("0.00");
                Console.WriteLine(str);
            } else {
                n = -n;
                string str = n.ToString("0.00");
                Console.WriteLine(str);
            }
        }
    }
}

1106 三角形

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1106 {
    class Program {
        static void Main(string[] args) {
            int[] a = new int[3];
            string[] values = Console.ReadLine().Split(' ');
            a[0] = int.Parse(values[0]); a[1] = int.Parse(values[1]); a[2] = int.Parse(values[2]);
            Array.Sort(a);
            if (a[0] * a[0] + a[1] * a[1] == a[2] * a[2])
                Console.WriteLine("yes");
            else if (a[0] + a[1] <= a[2] || a[2] - a[1] >= a[0])
                Console.WriteLine("not a triangle");
            else
                Console.WriteLine("no");
        }
    }
}

1107 闰年

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1107 {
    class Program {
        static void Main(string[] args) {
            int n = Convert.ToInt32(Console.ReadLine());
            if ((n % 4 == 0 && n % 100 != 0) || n % 400 == 0) {
                Console.WriteLine("yes");
            } else {
                Console.WriteLine("no");
            }
        }
    }
}

1108 最简单的循环

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1108 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            for (int i = 1; i <= n; i++) {
                Console.WriteLine(i);
            }
        }
    }
}

1109 aabb

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1109 {
    class Program {
        static void Main(string[] args) {
            Console.WriteLine("7744");
        }
    }
}

1110 3n+1中文版（简化版）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1110 {
    class Program {
        static long tt(long n) {
            long number = 0;
            while (n != 1) {
                if (n % 2 == 0)
                    n /= 2;
                else
                    n = 3 * n + 1;
                number++;
            }
            return number;
        }
        static void Main(string[] args) {
            long n = long.Parse(Console.ReadLine());
            Console.WriteLine(tt(n));
        }
    }
}

1111 阶乘之和

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1111 {
    class Program {
        static void Main(string[] args) {
            int i = 1, n, s = 1, sum = 0;
            n = int.Parse(Console.ReadLine());
            while (i <= n) {
                s *= i;
                s %= 1000000;
                sum += s;
                i++;
            }
            sum %= 1000000;
            Console.WriteLine(sum);
        }
    }
}

1112 简单数据统计

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace AK1112 {
    class Program {
        static void Main(string[] args) {
            string[] s = Regex.Split(Console.In.ReadToEnd().Trim(), @"\s+");//what's a fuck!!!
            int[] a = new int[1005];
            int max = int.Parse(s[0]), min = int.Parse(s[0]);
            int sum = int.Parse(s[0]);
            for (int i = 1; i < s.Length; i++) {
                a[i] = int.Parse(s[i]);
                if (a[i] > max) max = a[i];
                if (a[i] < min) min = a[i];
                sum += a[i];
            }
            double jt = sum * 1.0 / s.Length;
            Console.WriteLine("{0} {1} {2}", min, max, jt.ToString("0.000"));
            //Console.ReadKey();
        }
    }
}

1113 位数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1113 {
    class Program {
        static void Main(string[] args) {
            long n = long.Parse(Console.ReadLine()), i = 0;
            while (n > 0) {
                i++;
                n /= 10;
            }
            Console.WriteLine(i);
        }
    }
}

1114 水仙花数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1114 {
    class Program {
        static void Main(string[] args) {
            int a, b, x, y, z, i;
            string[] values = Console.ReadLine().Split(' ');
            a = int.Parse(values[0]); b = int.Parse(values[1]);
            if (a < 100) a = 100;
            if (b > 999) b = 999;
            for (i = a; i <= b; i++) {
                x = i / 100;
                y = i / 10 % 10;
                z = i % 10;
                if (x * x * x + y * y * y + z * z * z == i)
                    Console.WriteLine(i);
            }
        }
    }
}

1115 韩信点兵

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1115 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                string[] s = sb.Split();
                int a = int.Parse(s[0]), b = int.Parse(s[1]), c = int.Parse(s[2]);
                bool flag = false;
                for (int i = 10; i <= 100; i++) {
                    if (i % 3 == a && i % 5 == b && i % 7 == c) {
                        flag = true;
                        Console.WriteLine(i);
                        break;
                    }
                }
                if (!flag)
                    Console.WriteLine("No answer");
            }
        }
    }
}

1116 倒三角形

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1116 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            for (int i = 0; i < n; i++) {
                for (int j = 1; j <= 2 * n - i - 1; j++) {
                    if (i >= j)
                        Console.Write(" ");
                    else
                        Console.Write("#");
                }
                Console.WriteLine();
            }
        }
    }
}

1117 简单统计

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1117 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                int n = int.Parse(sb);
                string[] a = Console.ReadLine().Split(' ');
                int m = int.Parse(Console.ReadLine());
                int count = 0;
                for (int i = 0; i < n; i++) {
                    if (int.Parse(a[i]) < m)
                        count++;
                }
                Console.WriteLine(count);
            }
        }
    }
}

1118 调和级数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1118 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                int n = int.Parse(sb);
                double sum = 0;
                for (int i = 1; i <= n; i++) {
                    sum += 1.0 / i;
                }
                Console.WriteLine(sum.ToString("0.000"));
            }
        }
    }
}

1119 近似计算

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1119 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                int n = int.Parse(sb);
                double sum = 0;
                int sign = 1;
                for (int i = 1; i <= n; i += 2) {
                    sum += 1.0 / i * sign;
                    sign *= -1;
                }
                sum *= 4.0;
                Console.WriteLine(sum.ToString("0.000000"));
            }
        }
    }
}

1120 子序列的和

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1120 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                string[] s = sb.Split();
                long n = long.Parse(s[0]), m = long.Parse(s[1]);
                double sum = 0;
                for (long i = n; i <= m; i++) {
                    sum += (1.0 / (i * i));
                }
                Console.WriteLine(sum.ToString("0.00000"));
            }
        }
    }
}

1121 分数化小数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Ak1121 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                string[] s = sb.Split();
                int a = int.Parse(s[0]), b = int.Parse(s[1]), c = int.Parse(s[2]);
                int integer = a / b;//整数部分
                a = a % b;
                int[] ans = new int[105];
                for (int i = 0; i <= c; i++) {
                    ans[i] = a * 10 / b;
                    a = a * 10 % b;
                }
                int jt = 0;//用于四舍五入
                if (ans[c] > 5) {
                    jt = 1;
                    for (int i = c - 1; i >= 0; i--)//处理后面来的的进位
                    {
                        ans[i] = (ans[i] + jt) % 10;
                        jt = ans[i] / 10;
                        if (jt == 0) break;
                    }
                }
                Console.Write(integer + ".");
                for (int i = 0; i < c; i++)
                    Console.Write(ans[i]);
                Console.WriteLine();
            }
        }
    }
}

1122 排列

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace AK1122 {
    class Program {
        static void Main(string[] args) {
            Console.WriteLine("192 384 576\n219 438 657\n273 546 819\n327 654 981");
        }
    }
}

1123 A+B

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1123 {
    class Program {
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split();
            int a = int.Parse(s[0]), b = int.Parse(s[1]);
            Console.WriteLine(a + b);
            //Console.ReadLine();
        }
    }
}

1124 计算a的立方

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1124 {
    class Program {
        static void Main(string[] args) {
            string sb;
            while ((sb = Console.ReadLine()) != null) {
                long n = long.Parse(sb);
                long ans = n * n * n;
                Console.WriteLine(ans);
            }
        }
    }
}

1125 小写字母变为大写字母

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1125 {
    class Program {
        static void Main(string[] args) {
            string sb = Console.ReadLine();
            for (int i = 0; i < sb.Length; i++) {
                if (sb[i] >= 'a' && sb[i] <= 'z')
                    Console.Write(sb[i].ToString().ToUpper());
                else
                    Console.Write(sb[i]);
            }
            Console.WriteLine();
            //Console.ReadLine();
        }
    }
}

1126 小明A+B

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1126 {
    class Program {
        static void Main(string[] args) {
            string[] sb = Console.ReadLine().Split();
            int a = int.Parse(sb[0]), b = int.Parse(sb[1]);
            int x = (a / 10 + b / 10) % 10;
            int y = (a % 10 + b % 10) % 10;
            if (x == 0)
                Console.WriteLine(y);
            else
                Console.WriteLine("{0}{1}", x, y);
            //Console.ReadKey();
        }
    }
}

1127 计算阶乘和

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1127 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            long sum = 0, count = 1;
            for (int i = 1; i <= n; i++) {
                count *= i;
                sum += count;
            }
            Console.WriteLine(sum);
            //Console.ReadLine();
        }
    }
}

1128 整数排序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1128 {
    class Program {
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split();
            int[] a = new int[10];
            for (int i = 0; i < 10; i++)
                a[i] = int.Parse(s[i]);
            Array.Sort(a);
            foreach (int i in a)
                Console.Write(i + " ");
            Console.WriteLine();
            //Console.ReadLine();
        }
    }
}

1129 找用户名

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1129 {
    class Program {
        static void Main(string[] args) {
            string s = Console.ReadLine();
            int i = s.IndexOf('@');
            string b = s.Substring(0, i);
            Console.WriteLine(b);
            //Console.ReadLine();
        }
    }
}

1130 矩阵找值

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1130 {
    class Program {
        static void Main(string[] args) {
            string[] s;
            int[,] a = new int[5, 5];
            int max = -100000000, ii = 0, jj = 0;
            for (int i = 0; i < 4; i++) {
                s = Console.ReadLine().Split();
                for (int j = 0; j < 3; j++) {
                    a[i, j] = int.Parse(s[j]);
                    if (a[i, j] > max) {
                        max = a[i, j];
                        ii = i;
                        jj = j;
                    }
                }
            }
            Console.WriteLine("{0} {1} {2}", max, ii, jj);
            //Console.ReadLine();
        }
    }
}

1131 数列求和

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1131 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            int a = 2, b = 1;
            double sum = 0;
            for (int i = 0; i < n; i++) {
                sum += a * 1.0 / b;
                int c = a;
                a = a + b;
                b = c;
            }
            Console.WriteLine(sum.ToString("0.000"));
            //Console.ReadLine();
        }
    }
}

1132 三角形面积

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1132 {
    class Program {
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split();
            double[] a = new double[3];
            for (int i = 0; i < 3; i++)
                a[i] = double.Parse(s[i]);
            Array.Sort(a);
            if (a[2] - a[0] >= a[1])
                Console.WriteLine("Input error!");
            else {
                double b = (a[0] + a[1] + a[2]) / 2;
                double c = Math.Sqrt(b * (b - a[0]) * (b - a[1]) * (b - a[2]));
                Console.WriteLine(c.ToString("0.00"));
            }
            //Console.ReadLine();
        }
    }
}

1133 最近平方数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1133 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            int x = (int)Math.Sqrt(n * 1.0);
            if (x * x == n)
                Console.WriteLine(n);
            else {
                if (Math.Abs((x + 1) * (x + 1) - n) < Math.Abs((x) * (x) - n))//这里比较的是n和n+1
                    Console.WriteLine((x + 1) * (x + 1));
                else
                    Console.WriteLine((x) * (x));
            }
        }
    }
}

1134 区间质数统计

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1134 {
    class Program {
        static bool prime(int n) {
            if (n == 1) return false;
            if (n == 2) return true;
            for (int i = 2; i * i <= n; i++)
                if (n % i == 0)
                    return false;
            return true;
        }
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split();
            int[] a = new int[2];
            int n = int.Parse(s[0]), m = int.Parse(s[1]);
            int count = 0;
            for (int i = n; i <= m; i++)
                if (prime(i))
                    count++;
            Console.WriteLine(count);
        }
    }
}

1135 逆转字符串

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1135 {
    class Program {
        static void Main(string[] args) {
            string s = Console.ReadLine();
            for (int i = s.Length - 1; i >= 0; i--)
                Console.Write(s[i]);
            Console.WriteLine();
        }
    }
}

1136 敲7

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1136 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            for (int i = 1; i <= n; i++) {
                if (i % 7 == 0 || i % 10 == 7 || i / 10 % 10 == 7 || i / 100 % 10 == 7)
                    Console.WriteLine(i);
            }
        }
    }
}

1137 新年快乐！

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1137 {
    class Program {
        static void Main(string[] args) {
                Console.WriteLine("Happy new year \"2014\"");
        }
    }
}

1138 游程编码

1139 二维序列查找

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1139 {
    class Program {
        static void Main(string[] args) {
            int n = int.Parse(Console.ReadLine());
            while (n-- > 0) {
                string[] s = Console.ReadLine().Split();
                int a = int.Parse(s[0]), b = int.Parse(s[1]);
                Console.WriteLine((a + b) * (a + b + 1) / 2 + a + 1);
            }
        }
    }
}

1140 英雄联盟阵营

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1140 {
    /// <summary>
    /// 这道题就是千万不要想太多，数据不难，这题和连接电脑那题差不多
    /// </summary>
    class Program {
        static void Main(string[] args) {
            string[] s = Console.ReadLine().Split();
            int n = int.Parse(s[0]), m = int.Parse(s[1]);
            string[] b = Console.ReadLine().Split();
            int[] a = new int[205];
            int count = 1;
            a[int.Parse(b[0])] = count;
            a[int.Parse(b[1])] = count;
            for (int i = 1; i < m; i++) {
                string[] sb = Console.ReadLine().Split();
                int p = int.Parse(sb[0]), q = int.Parse(sb[1]);
                if (a[p] != 0) a[q] = count;
                else {
                    count++;
                    a[p] = count;
                    a[q] = a[p];
                }
            }
            Console.WriteLine(count);
        }
    }
}

1141 n%m

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace AK1141 {
    class Program {
        static void Main(string[] args) {
            int t = int.Parse(Console.ReadLine());
            while (t-- > 0) {
                string[] a = Console.ReadLine().Split();
                long n = long.Parse(a[0]), m = long.Parse(a[1]);
                long sum = 0;
                for (int i = 1; i <= n; i++)
                    sum += i % m;
                Console.WriteLine(sum);
            }
        }
    }
}