#include<bits/stdc++.h>
#include "game.h"
using namespace std;
#define mp make_pair
#define st first
#define nd second
typedef pair < int , int > pp;
typedef long long ll;
long long gcd(long long X, long long Y) {
if(X == 0 || Y == 0) {
return X + Y;
}
long long tmp;
while (X != Y && Y != 0) {
tmp = X;
X = Y;
Y = tmp % Y;
}
return X;
}
struct node{
int p[2];
ll x;
node *l, *r;
node(int a[], ll b) { l=r=NULL; p[0]=a[0]; p[1]=a[1]; x = b; }
};
node* insert(node *root, int p[], ll x, int k){
if(root == NULL) return new node(p,x);
if(p[0] == root->p[0] && p[1] == root->p[1]) { root->x = x; return root; }
if(p[k] < root->p[k])
root->l = insert(root->l, p, x, !k);
else
root->r = insert(root->r, p, x, !k);
return root;
}
ll ans;
void qry(node *root, pp p[], int k){
if(root == NULL) return;
if(root->p[0] >= p[0].st && root->p[0] <= p[0].nd && root->p[1] >= p[1].st && root->p[1] <= p[1].nd)
ans = gcd(ans , root->x);
if(root->p[k] > p[k].st)
qry(root->l, p, !k);
if(root->p[k] <= p[k].nd)
qry(root->r, p, !k);
}
node *root;
ll calculate(int xl, int yl, int xr, int yr){
ans = 0;
pp p[2];
p[0] = mp(xl,xr); p[1] = mp(yl,yr);
qry(root, p, 0);
return ans;
}
void update(int x, int y, ll val){
int p[2]; p[0] = x; p[1] = y;
root = insert(root, p, val, 0);
}
void init(){}
//int main(){}
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/cc8ieGFF.o: In function `main':
grader.c:(.text.startup+0x5d): undefined reference to `init'
collect2: error: ld returned 1 exit status
