#include <bits/stdc++.h>
// #include "game.h"
using namespace std;
using ll = long long ;
const int N = 105 ;
ll Mat[N][N] ;
long long gcd2(long long X, long long Y) {
long long tmp;
while (X != Y && Y != 0) {
tmp = X;
X = Y;
Y = tmp % Y;
}
return X;
}
void init(int R, int C) {
/* ... */
}
void update(int P, int Q, long long K) {
/* ... */
Mat[P][Q]=K;
}
long long calculate(int P, int Q, int U, int V) {
/* ... */
ll ans = 0 ;
for(int i = P ; i<= U ; i++ ){
for(int j = Q;j<=V;j++ )ans = gcd2(ans,Mat[i][j]);
}
return ans;
}
Compilation message
grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
int res;
^~~
/tmp/ccVIZzce.o: In function `main':
grader.c:(.text.startup+0x5d): undefined reference to `init'
grader.c:(.text.startup+0xb8): undefined reference to `calculate'
grader.c:(.text.startup+0x122): undefined reference to `update'
collect2: error: ld returned 1 exit status
