Submission #437981

#	Time	Username	Problem	Language	Result	Execution time	Memory
437981		illyakr	Horses (IOI15_horses)	C++14	17 / 100	1579 ms	12044 KiB

horses

#include <bits/stdc++.h>
#include "horses.h"
using namespace std;
#define ll long long
const ll mod = 1000000007;

ll n;
ll x[501010], y[501010];
int init(int N, int X[], int Y[]) {
	n = N;
	for (ll i = 0; i < n; i++) {
        x[i] = X[i] % mod;
        y[i] = Y[i] % mod;
	}
	ll ans = 0, cnt = 1;
	for (ll i = 0; i < n; i++) {
        cnt *= x[i]; cnt %= mod;
        ans = max(ans, y[i] * cnt);
        ans %= mod;
	}
	return ans % mod;
}

int updateX(int pos, int val) {
    x[pos] = val % mod;
	ll ans = 0, cnt = 1;
	for (ll i = 0; i < n; i++) {
        cnt *= x[i]; cnt %= mod;
        ans = max(ans, y[i] * cnt);
        ans %= mod;
	}
	return ans % mod;
}

int updateY(int pos, int val) {
    y[pos] = val % mod;
	ll ans = 0, cnt = 1;
	for (ll i = 0; i < n; i++) {
        cnt *= x[i]; cnt %= mod;
        ans = max(ans, y[i] * cnt);
        ans %= mod;
	}
	return ans % mod;
}

Compilation message (stderr)

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:21:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   21 |  return ans % mod;
      |         ~~~~^~~~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:32:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   32 |  return ans % mod;
      |         ~~~~^~~~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:43:13: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   43 |  return ans % mod;
      |         ~~~~^~~~~

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