后来发现应该是指针p2未定义的问题,删除p2就正确输出了,
个人认为,指针p2并不会影响,想问为什么会这样。C语言新人,求大佬不吝赐教,万分感谢
#include<stdio.h>
#include<stdlib.h>
int* twoSum(int* nums, int numsSize, int target, int* returnSize) {
for (int i = 0; i < numsSize; ++i) {
for (int j = i + 1; j < numsSize; ++j) {
if (nums[i] + nums[j] == target) {
int* ret = malloc(sizeof(int) * 2);
ret[0] = i, ret[1] = j;
*returnSize = 2;
return ret;
}
}
}
*returnSize = 0;
return NULL;
}
void main()
{
int *p,*p2;
p2=malloc(sizeof(int) * 2);
int arr[4]={2,7,11,15};
p=twoSum(arr,4,9,p2);
printf("%d %d",p[0],p[1]);
free(p);
free(p2);
}