Submission #1611095

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define REP(i, s, n) for (int i = s; i < n; ++i)
#define rep(i, n) REP(i, 0, n)
#define SORT(c) sort((c).begin(), (c).end())
#define IINF INT_MAX
#define LLINF LLONG_MAX
#define DEBUG false

int main()
{
    int k,s;
    cin>>k>>s;
    int ans=0;
    rep(i,k+1)
        rep(j,k+1)
            if(0<=s-i-j&&s-i-j<=k)ans++;
    
    cout<<ans<<endl;
    return 0;
}

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