XTU 1263 Super Resolution 2017年“嘉杰信息杯” 中国大学生程序设计竞赛全国邀请赛（湖南）

Super Resolution

Accepted : 106		Submit : 169
Time Limit : 1000 MS		Memory Limit : 65536 KB

Super Resolution

Bobo has an n×m picture consists of black and white pixels.He loves the picture so he would like to scale it a×b times.That is, to replace each pixel with a×b block of pixels with the same color (see the example for clarity).

Input

The input contains zero or more test cases and is terminated by end-of-file. For each test case,

The first line contains four integers n,m,a,b.The i-th of the following n lines contains a binary string of length m which denotes the i-th row of the original picture. Character "0" stands for a white pixel while the character "1" stands for black one.

• 1≤n,m,a,b≤10
• The number of tests cases does not exceed 10.

Output

For each case, output n×a rows and m×b columns which denote the result.

Sample Input

2 2 1 1
10
11
2 2 2 2
10
11
2 2 2 3
10
11

Sample Output

10
11
1100
1100
1111
1111
111000
111000
111111
111111

解题思路：这题真的是道水题。。。

代码如下：

#include 
#include 
#include 
using namespace std;
int main()
{
    int n,m,a,b;
    char s[22][22];
    while(scanf("%d %d %d %d",&n,&m,&a,&b)!=EOF)
    {
        for(int i=0; i