제출 #543642

#제출 시각아이디문제언어결과실행 시간메모리
543642Sho10Coins (IOI17_coins)C++17
0 / 100
1094 ms596 KiB
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho using ll=long long; using ld=long double; int const INF=1000000005; ll const LINF=1000000000000000005; ll const mod=1000000007; ld const PI=3.14159265359; ll const MAX_N=3e5+5; #pragma GCC optimize("O3") #pragma GCC optimize("Ofast") #define f first #define s second #define pb push_back #define mp make_pair #define endl '\n' #define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0); using namespace std; vector<int> coin_flips(vector<int>b,int c){ int xr=0; for(ll i=0;i<b.size();i++) { if(b[i]){ xr^=i; } } vector<int>ans; ans.pb(xr^c); } int find_coin(vector<int>b){ int xr=0; for(ll i=0;i<b.size();i++) { if(b[i]){ xr^=i; } } return xr; } /* int32_t main(){ CODE_START; #ifdef LOCAL ifstream cin("input.txt"); #endif */

컴파일 시 표준 에러 (stderr) 메시지

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:20:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | for(ll i=0;i<b.size();i++)
      |            ~^~~~~~~~~
coins.cpp:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
   28 | }
      | ^
coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:31:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 | for(ll i=0;i<b.size();i++)
      |            ~^~~~~~~~~
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