56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
#include<iostream>
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#include<cstdio>
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#include<string.h>
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using namespace std;
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char S[1000],Q[1000];
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char Std[65]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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void Make(int x)
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{
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Q[strlen(Q)]=Std[x];
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}
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void f(int n)
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{
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if(n) f(n/2);
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else return;
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printf("%d",n%2);
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}
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int main()
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{
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int t,tm;
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scanf("%d",&tm);t=tm;
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while(t--)
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{
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int k,i,n;
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scanf("%d %s",&n,S);
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while(n--)
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{
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memset(Q,0,sizeof(Q));
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int l=strlen(S);
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for(i=0;i<l;i++)
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{
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if(i%3==0)
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Make(S[i]/4);
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if(i%3==1)
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Make((S[i-1]%4)*16+S[i]/16);
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if(i%3==2)
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{
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Make((S[i-1]%16)*4+S[i]/64);
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Make(S[i]%64);
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}
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}
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if(l%3)
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{
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int key=(S[l-1]%4)*16;
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if(l%3==2) key=(S[l-1]%16)*4;
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Make(key);
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strcat(Q,"=");
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if(l%3==1) strcat(Q,"=");
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}
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Q[strlen(Q)]='\0';
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strcpy(S,Q);
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}
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printf("Case #%d: %s\n",tm-t,S);
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}
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return 0;
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}
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