This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "game.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
const int LIM=107;
ll T[LIM][LIM], n, m;
void init(int R, int C) {
n=R; m=C;
}
void update(int a, int b, ll x) {
T[a][b]=x;
}
ll calculate(int ar, int ac, int br, int bc) {
ll ans=0;
rep(i, n) rep(j, m) if(ar<=i && i<=br && ac<=j && j<=bc) ans=gcd(ans, T[i][j]);
return ans;
}
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