ZJNU 1372 - 破解情书

取模运算在数组内循环解密，否则会MLE

 1 /*
 2 Written By StelaYuri
 3 */
 4 #include<stdio.h>
 5 char cm[210],cn[1000010];
 6 int main()
 7 {
 8     int i,j,s1,s2,n,m,l,k;
 9     scanf("%d%d%d%d%s%s",&n,&m,&l,&k,cm,cn);
10     for(i=(n-1+l)%n,s1=0;s1<k;s1++,i=(i+l)%n)
11         for(j=(i-m+1+n)%n,s2=0;s2<m;s2++,j=(j+1)%n)
12         {
13             if(cn[j]=='0')
14                 cn[j]=cm[s2];
15             else
16                 cn[j]=1-(cm[s2]-'0')+'0';
17         }
18     for(i=(k*l)%n,s1=0;s1<n;s1++,i=(i+1)%n)
19         putchar(cn[i]);
20     
21     return 0;
22 }