Submission #135432

#	Time	Username	Problem	Language	Result	Execution time	Memory
135432		Boxworld	Horses (IOI15_horses)	C++14	0 / 100	1569 ms	8208 KiB

horses

#include "horses.h"
#include <bits/stdc++.h>
using namespace std;
const long long bignum=1e9+7;
struct year{int x,y;}a[500100];
int n,ok=1;
int cnt(){
    long long ans=0,m=0,ho=1,tmp=1;
    for (int i=0;i<n;i++){
        ho=ho*a[i].x%bignum;
        tmp=tmp*a[i].x;
        double t=double(a[m].y)/double(a[i].y);
        if (t<=tmp){
            ans=ho*a[i].y%bignum;
            m=i;tmp=1;
        }
    }
    return ans;
}
int cnt2(){
    long long ans=0,m=n-32,ho=1,tmp=1;
    for (int i=0;i<n-32;i++)ho=ho*a[i].x%bignum;
    for (int i=n-32;i<n;i++){
        ho=ho*a[i].x%bignum;
        tmp=tmp*a[i].x;
        double t=double(a[m].y)/double(a[i].y);
        if (t<=tmp){
            ans=ho*a[i].y%bignum;
            m=i;tmp=1;
        }
    }
    return ans;
}
int init(int N, int X[], int Y[]){
    n=N;
    for (int i=0;i<n;i++){a[i].x=X[i];a[i].y=Y[i];if(a[i].x<2)ok=0;}
	if (ok)return cnt2();
	else return cnt();
}

int updateX(int pos, int val) {
    a[pos].x=val;
    if (val<2)ok=0;
    if (ok)return cnt2();
	else return cnt();
}

int updateY(int pos, int val) {
    a[pos].y=val;
    if (ok)return cnt2();
	else return cnt();
}

Compilation message (stderr)

horses.cpp: In function 'int cnt()':
horses.cpp:13:16: warning: conversion to 'double' from 'long long int' may alter its value [-Wconversion]
         if (t<=tmp){
                ^~~
horses.cpp:18:12: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return ans;
            ^~~
horses.cpp: In function 'int cnt2()':
horses.cpp:27:16: warning: conversion to 'double' from 'long long int' may alter its value [-Wconversion]
         if (t<=tmp){
                ^~~
horses.cpp:32:12: warning: conversion to 'int' from 'long long int' may alter its value [-Wconversion]
     return ans;
            ^~~

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