Submission #169260

#	Time	Username	Problem	Language	Result	Execution time	Memory
169260		oolimry	Game (IOI13_game)	C++14	36 / 100	1395 ms	132472 KiB

game

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

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;
}

static long long tree[4005][4005];

int N, M;
void init(int R, int C) {
	N = R; M = C;
    for(int i = 1;i <= 2 * R;i++){
		for(int j = 1;j <= 2 * C;j++){
			tree[i][j] = 0;
		}
	}
}

void update(int r, int c, long long v) {
	int nr = N + r;
	int nc = M + c;
	tree[nr][nc] = v;
	while(nr > 0){
		nc = M + c;
		while(nc > 0){
			if(nr < N){
				tree[nr][nc] = gcd2(tree[nr<<1][nc],tree[nr<<1|1][nc]);
			}
			else if(nc < M){
				tree[nr][nc] = gcd2(tree[nr][nc<<1],tree[nr][nc<<1|1]);
			}
			else tree[nr][nc] = v;
			//cout << nr << " " << nc << "\n";
			nc >>= 1;
		}
		nr >>= 1;
	}
	//cout << endl;
}

long long calculate(int t, int l, int b, int r) {
    long long ans = 0;
    b++; r++;
    for(t += N, b += N;t < b;t >>= 1, b >>= 1){
		if(t&1){
			for(int nl = l+M, nr = r+M;nl < nr;nr >>= 1, nl >>= 1){
				if(nl&1){
					ans = gcd2(ans, tree[t][nl]);
					//cout << t << " " << nl << "\n";
					nl++;
				}
				if(nr&1){
					nr--;
					ans = gcd2(ans, tree[t][nr]);
					//cout << t << " " << nr << "\n";
				}
			}
			t++;
		}
		if(b&1){
			b--;
			for(int nl = l+M, nr = r+M;nl < nr;nr >>= 1, nl >>= 1){
				if(nl&1){
					ans = gcd2(ans, tree[b][nl]);
					//cout << b << " " << nl << "\n";
					nl++;
				}
				if(nr&1){
					nr--;
					ans = gcd2(ans, tree[b][nr]);
					//cout << b << " " << nr << "\n";
				}
			}
		}
	}
	//cout << endl;
	return ans;
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 27
• Subtask 3: 26 / 26
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20