2015 ACM-ICPC 上海5 24 现场状态

比赛过程中忘了写chs函数导致无论如何都调试不成
[cpp]
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include

using namespace std;

typedef long long LL;
typedef unsigned long long ULL;
const int maxn=1010;
const int inf=0x7fffffff;
const double eps=1e-3;

const int m1=0x00fc0000;
const int m2=0x0003f000;
const int m3=0x00000fc0;
const int m4=0x0000003f;

char str[maxn];

char chs(char ch)
{
if (ch>=0&&ch<26) return ch+’A’;
else if (ch>=26&&ch<52) return ch-26+’a’;
else if (ch>=52&&ch<62) return ch-52+’0’;
else if (ch==62) return ‘+’;
else if (ch==63) return ‘/‘;
}

void solve(char str[maxn])
{
char s[maxn]={‘&#92;&#48;’};
int len=strlen(str);
int tmp=0;
int pos=0;
for(int i=0;i<len;i++)
{
tmp<<=8;tmp+=int(str[i]);
if (!((i+1)%3))
{
s[pos++]=chs((tmp&m1)>>18);
s[pos++]=chs(((tmp&m2)>>12));
s[pos++]=chs(((tmp&m3)>>6));
s[pos++]=chs((tmp&m4));
tmp=0;
}
}
if (len%3)
{
tmp<<=(3-len%3)*8;
if ((tmp&m1)>0) s[pos++]=chs((tmp&m1)>>18);
if ((tmp&m2)>0) s[pos++]=chs(((tmp&m2)>>12));
if ((tmp&m3)>0) s[pos++]=chs(((tmp&m3)>>6));
if ((tmp&m4)>0) s[pos++]=chs((tmp&m4));
}
int sum=4-strlen(s)%4;
char *t=s+strlen(s);
if (sum<4)
for(int j=1;j<=sum;j++) *t++=’=’;
*t=’&#92;&#48;’;
strcpy(str,s);
}

int main()
{
int T;
scanf(“%d”,&T);
while(T–)
{
int k;
scanf(“%d%s”,&k,str);
for(int i=1;i<=k;i++) solve(str);
printf(“%s\n”,str);
}
return 0;
}
[/cpp]