提交记录 #378

编译情况：编译错误

code.c:81:5: error: redefinition of ‘isPrim’
   81 | int isPrim(int x) {
      |     ^~~~~~
code.c:32:5: note: previous definition of ‘isPrim’ was here
   32 | int isPrim(int x)
      |     ^~~~~~

固定测试点暂不可用

等待中

N/A

N/A

附加测试点暂不可用

不可用

N/A

51【大学】素数计数—用指针哦

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

// 声明 isPrim 函数
int isPrim(int x);

int *input(int n) {
    int *p = (int *)malloc(n * sizeof(int));
    if (p == NULL) {
        printf("Memory allocation failed\n");
        exit(1);
    }
    for (int i = 0; i < n; i++) {
        scanf("%d", &p[i]);
    }
    return p;
}

int PrimCount(int *p, int n) {
    int count = 0;
    for (int i = 0; i < n; i++) {
        if (isPrim(p[i])) {
            count++;
        }
    }
    return count;
}

int isPrim(int x) {
    if (x == 2) return 1;
    if (x <= 1 || x % 2 == 0) return 0;
    for (int i = 3; i <= sqrt(x); i += 2) {
        if (x % i == 0) return 0;
    }
    return 1;
}