제출 #1121826

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1121826		SalihSahin	말 (IOI15_horses)	C++14	컴파일 에러	0 ms	0 KiB

horses

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

const long long mod = 1e9 + 7;

vector<array<long long, 2> > arr;

int init(int N, int X[], int Y[]) {
    arr.resize(N);
    for(int i = 0; i < N; i++){
        arr[i] = {X[i], Y[i]};
    }

    long long vl = 1;
    int ind = 0;
    for(int i = N-1; i >= 0; i--){
        vl *= arr[i][0];
        if(vl > mod){
            ind = i;
            break;
        }
    }

    vl = 1;
    long long precarp = 1;
    for(int i = 0; i < ind; i++){
        precarp = (precarp * arr[i][0])%mod;
    }
    long long ans = 0;
    for(int i = ind; i < N; i++){
        vl *= arr[i][0];
        ans = max(ans, vl * arr[i][1]);
    }
    ans %= mod;
    ans *= precarp;
    ans %= mod;
    return ans;
}

int updateX(int pos, int val) { 
    int N = arr.size();
    arr[pos][0] = val;
    long long vl = 1;
    int ind = 0;
    for(int i = N-1; i >= 0; i--){
        vl *= arr[i][0];
        if(vl > mod){
            ind = i;
            break;
        }
    }

    vl = 1;
    long long precarp = 1;
    for(int i = 0; i < ind; i++){
        precarp = (precarp * arr[i][0])%mod;
    }
    long long ans = 0;
    for(int i = ind; i < N; i++){
        vl *= arr[i][0];
        ans = max(ans, vl * arr[i][1]);
    }1
    ans %= mod;
    ans *= precarp;
    ans %= mod;
    return ans;
}

int updateY(int pos, int val){
    int N = arr.size();
    arr[pos][1] = val;
    long long vl = 1;
    int ind = 0;
    for(int i = N-1; i >= 0; i--){
        vl *= arr[i][0];
        if(vl > mod){
            ind = i;
            break;
        }
    }

    vl = 1;
    long long precarp = 1;
    for(int i = 0; i < ind; i++){
        precarp = (precarp * arr[i][0])%mod;
    }
    long long ans = 0;
    for(int i = ind; i < N; i++){
        vl *= arr[i][0];
        ans = max(ans, vl * arr[i][1]);
    }
    ans %= mod;
    ans *= precarp;
    ans %= mod;
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

horses.cpp: In function 'int init(int, int*, int*)':
horses.cpp:39:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   39 |     return ans;
      |            ^~~
horses.cpp: In function 'int updateX(int, int)':
horses.cpp:43:21: warning: conversion from 'std::vector<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   43 |     int N = arr.size();
      |             ~~~~~~~~^~
horses.cpp:64:7: error: expected ';' before 'ans'
   64 |     }1
      |       ^
      |       ;
   65 |     ans %= mod;
      |     ~~~
horses.cpp:64:6: warning: statement has no effect [-Wunused-value]
   64 |     }1
      |      ^
horses.cpp:68:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   68 |     return ans;
      |            ^~~
horses.cpp: In function 'int updateY(int, int)':
horses.cpp:72:21: warning: conversion from 'std::vector<std::array<long long int, 2> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   72 |     int N = arr.size();
      |             ~~~~~~~~^~
horses.cpp:97:12: warning: conversion from 'long long int' to 'int' may change value [-Wconversion]
   97 |     return ans;
      |            ^~~