Submission #795497

#	Time	Username	Problem	Language	Result	Execution time	Memory
795497		jasmin	Horses (IOI15_horses)	C++17	17 / 100	25 ms	4420 KiB

horses

#include "horses.h"
#include<bits/stdc++.h>
using namespace std;

const long long MOD=1e9+7;

bool bigger(pair<int,int> a, pair<int,int> b){
    return a.first*b.second > a.second*b.first;
}

int solveSlow(int n, int x[], int y[]){

    long long p=1; bool mod=false;
    pair<int,int> maxi={1, 1}; int ind=n-1;
    for(int i=n-1; i>=0; i--){

        if(!mod){
            
            if(bigger({y[i], p}, maxi)){
                maxi={y[i], p};
                ind=i;
            }
            
        }

        p*=x[i];
        if(p>MOD){
            p%=MOD;
            mod=true;
        }

    }

    int ans=1;
    for(int i=0; i<=ind; i++){
        ans *= x[i];
        ans%=MOD;
    }

    ans*=y[ind];
    ans%=MOD;
    return ans;
}

int init(int N, int X[], int Y[]) {
	return solveSlow(N, X, Y);
}

int updateX(int pos, int val) {	
	return 0;
}

int updateY(int pos, int val) {
	return 0;
}

Compilation message (stderr)

horses.cpp: In function 'int updateX(int, int)':
horses.cpp:49:17: warning: unused parameter 'pos' [-Wunused-parameter]
   49 | int updateX(int pos, int val) {
      |             ~~~~^~~
horses.cpp:49:26: warning: unused parameter 'val' [-Wunused-parameter]
   49 | int updateX(int pos, int val) {
      |                      ~~~~^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:53:17: warning: unused parameter 'pos' [-Wunused-parameter]
   53 | int updateY(int pos, int val) {
      |             ~~~~^~~
horses.cpp:53:26: warning: unused parameter 'val' [-Wunused-parameter]
   53 | int updateY(int pos, int val) {
      |                      ~~~~^~~

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