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能运行出结果,但是就是WA。。怎么办#include"stdio.h"
#include"stdlib.h"
int main()
{
int num,num_,i,a,b=0,n=0,t,m;
char str[5000],c[2500];
scanf("%d\n",&num);
num_=num;
for(i=0;i<num_;i++)
{scanf("%c",&str[i]);}
a=(int)(num_/2);
for(m=0;m<a;m++)
{c[m]=str[num_-m-1];}
for(m=0;m<a;m++)
{
for(t=n+b;t<a-m;t++)
{
if(str[m]!=c[t])n++;
else b++;break;
}
}
printf("%d\n",2*n);
system("pause");
return 0;
}
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