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why i get WA all of my output is right can anyone help me??????????????????
#include<stdio.h>
#include<math.h>
#include<string.h>
char str[1000];
bool used[1000];
char per[4000];
long L,t=0;

bool Issolution(long p)
{
if(p==L)
return true;
return false;
}

long con_can(long p,char can ...