Submission #167578

#	Time	Username	Problem	Language	Result	Execution time	Memory
167578		cgiosy	Game (IOI13_game)	C++17	80 / 100	6142 ms	256004 KiB

game

#include <bits/stdc++.h>
using namespace std;
#include "game.h"
using ll=long long;
int sz1=1, sz2=1;

struct T { ll x; int l, r; } X[60000000];
struct seg {
	int N, root;
	seg(const int n) : N(n-1) { root=0; }
	ll get(int l, int r, int s, int e, int i) const {
		if(!i || e<l || r<s) return 0;
		if(l<=s && e<=r) return X[i].x;
		int m=(s+e)>>1;
		return gcd(get(l, r, s, m, X[i].l), get(l, r, m+1, e, X[i].r));
	}
	ll get(int l, int r) const { return get(l, r, 0, N, root); }
	ll set(int p, ll x, int s, int e, int&i) {
		if(p<s || e<p) return X[i].x;
		if(!i) X[i=sz1++].x=x;
		if(s==e) return X[i].x=x;
		int m=(s+e)>>1;
		return X[i].x=gcd(set(p, x, s, m, X[i].l), set(p, x, m+1, e, X[i].r));
	}
	void set(int p, ll x) { set(p, x, 0, N, root); }
};

struct T2 { seg* x; int l, r; } Y[4194304];
struct seg2 {
	int N, M, root;
	seg2(int n, int m) : N(n-1), M(m) { root=0; }
	ll get(int l1, int r1, int l2, int r2, int s, int e, int i) const {
		if(!i || e<l1 || r1<s) return 0;
		if(l1<=s && e<=r1) return Y[i].x->get(l2, r2);
		int m=(s+e)>>1;
		return gcd(get(l1, r1, l2, r2, s, m, Y[i].l), get(l1, r1, l2, r2, m+1, e, Y[i].r));
	}
	ll get(int l1, int r1, int l2, int r2) const { return get(l1, r1, l2, r2, 0, N, root); }
	ll set(int p, int q, ll x, int s, int e, int&i) {
		if(p<s || e<p) return i ? Y[i].x->get(q, q) : 0;
		if(!i) Y[i=sz2++].x=new seg(M);
		if(s==e) {
			Y[i].x->set(q, x);
			return x;
		}
		int m=(s+e)>>1;
		ll y=gcd(set(p, q, x, s, m, Y[i].l), set(p, q, x, m+1, e, Y[i].r));
		Y[i].x->set(q, y);
		return y;
	}
	void set(int p, int q, ll x) { set(p, q, x, 0, N, root); }
} *T;

void init(int R, int C) {
	T=new seg2(R, C);
}
void update(int P, int Q, ll K) {
	T->set(P, Q, K);
}
ll calculate(int P, int Q, int U, int V) {
	return T->get(P, U, Q, V);
}

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