제출 #918686

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
918686		vjudge1	Coins (IOI17_coins)	C++17	100 / 100	8 ms	1740 KiB

coins

#include<bits/stdc++.h>
#include"coins.h"
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define ll long long
#define ld long double
#define vl vector<ll>
#define vi vector<int>
#define pb push_back

using namespace std;
using namespace __gnu_pbds;
typedef tree<ll, null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
vi coin_flips(vi b, int c){
    vi flips;
    int xr = c;
    for(int i = 0; i < b.size(); i++) {
        if(b[i] == 1)
            xr = (xr ^ i);
    }
    flips.pb(xr);
    return flips;
}
int find_coin(vi b)
{
    int xr = 0;
    for(int i = 0; i<b.size(); i++)
    {
        if(b[i] == 1)
            xr = (xr ^ i);
    }
    return xr;
}

컴파일 시 표준 에러 (stderr) 메시지

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:17:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i = 0; i < b.size(); i++) {
      |                    ~~^~~~~~~~~~
coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:27:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i = 0; i<b.size(); i++)
      |                    ~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 15 / 15
• Subtask 5: 50 / 50