zoj 3603 Draw Something Cheat

//本来就是一道简单题，但是没有很好的理解题目，将重复的字符给去掉，所以一直都是WA！//下面参考了别人的代码写出了的！囧！#include "iostream"#include "string"using namespace std;string str[25];int main(){int testcase, i, j, k, time;cin >> testcase;while (testcase--){cin >> time;for (i = 0; i < time; i++)cin >> str[i];for (i = 1; i < time; i++)for (j = 0; j < 12; j++){for (k = 0; k < 12; k++)if (str[0][j] == str[i][k])break;if (k == 12)str[0][j] = '#';elsestr[i][k] = '#';}for (i = 65; i <= 91; i++)for (j = 0; j < 12; j++){if (str[0][j] == i)cout << str[0][j];}cout << endl;}}