제출 #301229

#제출 시각아이디문제언어결과실행 시간메모리
301229phillipCoins (IOI17_coins)C++14
0 / 100
2 ms1280 KiB
#include "coins.h"
#include <bits/stdc++.h>
#define ll long long
using namespace std;
int dif(string s1,string s2)
{
    int dd=0;
    for(int i=0;i<3;i++)if(s1!=s2)dd++;
    return dd;
}
vector<int> coin_flips(vector<int> b, int c)
{
    string ac[4]={"000","111","101","010"};
    vector<int> flips;
    string s="";
    for(int i=0;i<3;i++)s+=char(b[i]+'0');
    int cur=0;
    if(c<2)
    {
        if(c>0)cur+=2;
        string s1=ac[cur],s2=ac[cur+1];
        if(s==s1||s==s2)
        {
            flips.push_back(9);
            return flips;
        }
        string comp;
        if(dif(s,s1)==1)comp=s1;
        else comp=s2;
        for(int i=0;i<3;i++)
        {
            if(s[i]!=comp[i])flips.push_back(i);
        }
        return flips;
    }
    vector<int>v;
    if(s==ac[0]||s==ac[1]||s==ac[2]||s==ac[3])v.push_back(2);
    else v.push_back(9);
    return flips;
}
int find_coin(vector<int> b)
{
    int ret=0;
    string ac[4]={"000","111","101","010"};
    string s="";
    for(int i=0;i<3;i++)s+=char(b[i]+'0');
    if(s==ac[0]||s==ac[1])return 0;
    else if(s==ac[2]||s==ac[3])return 1;
    return 2;
}

컴파일 시 표준 에러 (stderr) 메시지

coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:43:9: warning: unused variable 'ret' [-Wunused-variable]
   43 |     int ret=0;
      |         ^~~
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