csuoj 1396: Erase Securely

http://acm.csu.edu.cn/OnlineJudge/problem.php?id=1396

1396: Erase Securely

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 102  Solved: 60
[Submit][Status][Web Board]

Description

Input

Output

Sample Input

1
10001110101000001111010100001110
01110001010111110000101011110001

Sample Output

Deletion succeeded

HINT

 

 

 

分析；

异或。

 

AC代码：

#include <stdio.h>
#include <string.h>
#include <algorithm>

using namespace std;

const int N = 1e3 + 5;

char a[N],b[N];

int main()
{
    int n;
    while(~scanf("%d",&n))
    {
        scanf("%s%s",a,b);
        int len = strlen(a);
        n = n & 1;
        bool ok = true;
        for(int i=0;i<len;i++)
            if((a[i] ^ n) != b[i])
            {
                ok = false;
                break;
            }
        puts(ok ? "Deletion succeeded" : "Deletion failed");
    }
    return 0;
}