MT1331·用函数求π的近似值

c 语言代码实现

#include <math.h>
#include <stdio.h>
double Fun() {double pi_over_4 = 0.0; // Π / 4 的近似值double current;         // 当前项int i = 0;              // 项的索引do {current = (i % 2 == 0 ? 1.0 : -1.0) / (2.0 * i + 1.0); // 计算当前项pi_over_4 += current; // 累加当前项i++;} while (fabs(current) >= 1e-6); // 小于等于 10^-6return pi_over_4 * 4;
}
int main() {double pi_approx = Fun();printf("%.2f", pi_approx);return 0;
}

 MT1332·用函数求最大值

c 语言代码实现

#include <stdio.h>
int max_1(int a, int b) {if (a > b)return a;return b;
}
int max(int a, int b, int c, int d) {if (max_1(a, b) > max_1(c, d))return max_1(a, b);return max_1(c, d);
}
int main() {int a, b, c, d;scanf("%d %d %d %d", &a, &b, &c, &d);printf("%d",max(a, b, c, d));return 0;
}

 MT1333·用函数求最小值

c 语言实现代码

#include <stdio.h>
int min_1(int a, int b) {if (a > b)return b;return a;
}
int min(int a, int b, int c, int d) {if (min_1(a, b) > min_1(c, d))return min_1(c, d);return min_1(a, b);
}
int main() {int a, b, c, d;scanf("%d %d %d %d", &a, &b, &c, &d);printf("%d", min(a, b, c, d));return 0;
}

 MT1334·最小整数

c 语言代码实现 

#include <math.h>
#include <stdio.h>
double getceil(double x) { return ceil(x); }
int main() {double x;scanf("%lf", &x);printf("%.0lf", getceil(x));return 0;
}

 MT1335·最大整数

c 语言代码实现

#include <math.h>
#include <stdio.h>
double getfloor(double x) { return floor(x); }
int main() {double x;scanf("%lf", &x);printf("%.0lf", getfloor(x));return 0;
}

MT1336·用函数求阶乘

 

c语言代码实现

#include <stdio.h>
int fact(int x) {if (x == 1)return 1;return x * fact(x - 1);
}
int main() {int x;scanf("%d", &x);printf("%d", fact(x));return 0;
}

MT1337·n次方

 

c 语言代码实现

#include <math.h>
#include <stdio.h>
int fun(int m, int n) { return pow(m, n); }
int main() {int m, n;scanf("%d %d", &m, &n);printf("%d", fun(m, n));return 0;
}

MT1338·开n次方

 

c 语言代码实现

#include <math.h>
#include <stdio.h>
double S(double x, int n) { return pow(x, 1.0 / n); }
int main() {double x;int n;scanf("%lf %d", &x, &n);printf("%lf", S(x, n));return 0;
}

 MT1339·平均数

c 代码实现

#include <math.h>
#include <stdio.h>// 函数声明
double calculate_sum_of_squares(double arr[], int n);int main() {// 示例数组double data[100];int n;scanf("%d", &n);for (int i = 0; i < n; i++) {scanf("%lf", &data[i]);}// 计算平方差和double result = calculate_sum_of_squares(data, n);printf("%lf", result);return 0;
}// 计算平方差和的函数
double calculate_sum_of_squares(double arr[], int n) {if (n <= 0)return 0; // 如果数组长度为0，返回0// 计算平均数double sum = 0;for (int i = 0; i < n; i++) {sum += arr[i];}double mean = sum / n;// 计算平方差和double sum_of_squares = 0;for (int i = 0; i < n; i++) {sum_of_squares += pow(arr[i] - mean, 2);}return sum_of_squares;
}

MT1340·平均值函数

 

c 语言实现代码

#include <stdio.h>
double avg(int arr[100], int begin, int end) {double sum = 0, mean = 0;for (int i = begin; i <= end; i++) {sum += arr[i];}mean = sum / (end - begin + 1);return mean;
}
int main() {int n, begin, end, a[100];scanf("%d %d %d", &n, &begin, &end);for (int i = 0; i < n; i++) {scanf("%d", &a[i]);}printf("%lf", avg(a, begin, end));return 0;
}