char * restoreString(char * s, int* indices, int indicesSize){
char* RetStr = (char*)calloc(indicesSize+1, sizeof(char));
for (int i = 0; i < indicesSize; i++)RetStr[indices[i]] = s[i];
return RetStr;
}
原文：https://www.cnblogs.com/ganxiang/p/13619472.html