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 <cstdio>
#include <cmath>
#include <cstring>
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<n; i++)
scanf("%s",s[i]);
for(int i=0; i<n*a; i++)
{
for(int j=0; j<b*m; j++)
printf("%c",s[i/a][j/b]);
printf("\n");
}
}
return 0;
}