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题目：
题解：
typedef struct {int* num;int* src;int numsize;
} Solution;Solution *obj = NULL;Solution* solutionCreate(int* nums, int numsSize) {if (obj != NULL) {return obj;}Solution *obj = (Solution*)malloc(sizeof(Solution));obj->numsize = numsSize;//obj->num = (int*)malloc(sizeof(int) * numsSize);obj->num = nums;obj->src = (int*)malloc(sizeof(int) * numsSize);for (int i = 0; i < obj->numsize; i++) {// obj->num[i] = nums[i];obj->src[i] = nums[i];}return obj;
} int* solutionReset(Solution* obj, int* retSize) {*retSize = obj->numsize;return obj->num;/*int *ans = (int*) malloc(sizeof(int) * obj->numsize);for (int i = 0; i < obj->numsize; i++) {ans[i] = obj->num[i];}return ans;*/
}int* solutionShuffle(Solution* obj, int* retSize) {*retSize = obj->numsize;/*int *ans = (int*) malloc(sizeof(int) * obj->numsize);for (int i = 0; i < obj->numsize; i++) {ans[i] = obj->num[i];}*/for (int i = 0; i < obj->numsize; i++) {int k = (rand() % obj->numsize);int temp = obj->src[k];obj->src[k] = obj->src[i];obj->src[i] = temp;}return obj->src;
}void solutionFree(Solution* obj) {free(obj->num);free(obj->src);free(obj);obj = NULL;
}/*** Your Solution struct will be instantiated and called as such:* Solution* obj = solutionCreate(nums, numsSize);* int* param_1 = solutionReset(obj, retSize);* int* param_2 = solutionShuffle(obj, retSize);* solutionFree(obj);
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