I am not able to know y my solution is giving a WA?
it seems to be fine.
#include<iostream>
#include<cstdio>
using namespace std;
double mymap[1001][1001];
double func(int k,int n)
{
if(n>k)
return 0;
else if(k<=0 || n<=0)
return 0;
else if(n==1 && k<=6 && k>=1)
return 1.0/6.0;
else if(n==1 && k>6)
return 0;
else if(mymap[k][n]!=-1)
return mymap[k][n];;
double ans=0;
for(int i=1;i<7;i++)
{
ans+=func(k-i,n-1);
}
ans=ans/6;
mymap[k][n]=ans;
return ans;
}
int main()
{
int t,n,k;
scanf("%d",&t);
for(int i=0;i<1001;i++)
{
for(int j=0;j<1001;j++)
mymap[i][j]=-1;
}
while(t--)
{
scanf("%d %d",&n,&k);
if(n>1000)
cout<<0<<"\n";
else
cout<<int(func(k,n)*100)<<"\n";
}
}