【leetcode】旅行终点站

char * destCity(char *** paths, int pathsSize, int* pathsColSize){
    int col = *pathsColSize;
    char *cur = paths[0][col-1];
    for(int i = 1; i < pathsSize; i++){
        if(strcmp(cur,paths[i][0]) == 0){
            cur = paths[i][col-1];
            i = 0;
            }
        }
    return cur;
}