Submission #1135442

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135442		gyg	Horses (IOI15_horses)	C++20	17 / 100	1595 ms	12168 KiB

horses

// 0 indexed btw

#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
#define lint long long
#define arr array 
const int N = 5e5 + 5;
const lint MD = 1e9 + 7;

int n;
arr<lint, N> grw, prc;

lint md(lint x) { return (x + MD) % MD; }

int init(int _n, int _grw[], int _prc[]) {
	n = _n;
	for (int i = 1; i <= n; i++) grw[i] = _grw[i - 1], prc[i] = _prc[i - 1];
	
	lint cr = 1, ans = 0;
	for (int i = 1; i <= n; i++) {
		cr = md(cr * grw[i]);
		ans = max(ans, md(cr * prc[i]));
	}
	return ans;
}

int updateX(int id, int vl) {	
	id++, grw[id] = vl;
	
	lint cr = 1, ans = 0;
	for (int i = 1; i <= n; i++) {
		cr = md(cr * grw[i]);
		ans = max(ans, md(cr * prc[i]));
	}
	return ans;
}

int updateY(int id, int vl) {
	id++, prc[id] = vl;
	
	lint cr = 1, ans = 0;
	for (int i = 1; i <= n; i++) {
		cr = md(cr * grw[i]);
		ans = max(ans, md(cr * prc[i]));
	}
	return ans;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23