Submission #830326

#	Time	Username	Problem	Language	Result	Execution time	Memory
830326		mindiyak	Horses (IOI15_horses)	C++17	17 / 100	1563 ms	20252 KiB

horses

#include "horses.h"
#include <vector>
#include <iostream>

using namespace std;
typedef long long ll;


vector<ll> x;
vector<ll> y;
vector<ll> num_h;
int n;
int M = 1e9+7;

ll multi(ll a,ll b){
	return ((a%M)*(b%M))%M;
}

int calc(){
	num_h = vector<ll>();
	for(int i=0;i<n;i++)num_h.push_back(multi(x[i],((i==0)?1:num_h[i-1])));
	// for(int i=0;i<n;i++)cout << num_h[i] << " ";
	// cout << endl;

	ll MX = 0;
	for(int i=0;i<n;i++){
		MX = max(MX,multi(num_h[i],y[i]));
	}
	int ans = MX%((int)1e9+7);
	return ans;
}

int init(int N, int X[], int Y[]) {
	n = N;
	for(int i=0;i<N;i++)x.push_back(X[i]);
	for(int i=0;i<N;i++)y.push_back(Y[i]);

	return calc();
}

int updateX(int pos, int val) {	
	x[pos]=val;
	return calc();
}

int updateY(int pos, int val) {
	y[pos]=val;
	return calc();
}

Compilation message (stderr)

horses.cpp: In function 'int calc()':
horses.cpp:29:14: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   29 |  int ans = MX%((int)1e9+7);
      |            ~~^~~~~~~~~~~~~

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