제출 #844285

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
844285		vjudge1	Pod starim krovovima (COCI20_psk)	C++17	0 / 50	353 ms	80212 KiB

Main

#ifdef ONLINE_JUDGE
    #pragma GCC optimize("O3,unroll-loops")
    #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#endif
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/standard_policies.hpp>
#define int long long
#define pb push_back
#define lim 300000
#define till 40001
// # of primes till 1e6 = 7e4
using namespace std;
using namespace __gnu_pbds;

typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>ordered_set;
using pii = array<int,2>;

const int mod=1000000007ll;

void solve(){
    int n;
    cin>>n;
    int vol[n];
    int tot=0;
    for(int i=0;i<n;i++){
        int use;
        cin>>use;
        tot+=use;
        cin>>vol[i];
    }
    int res[n];
    memset(res,0,sizeof(res));
    int c=0;
    while(tot){
        int maxi=-1;
        for(int i=0;i<n;i++){
            if(!res[i]&&(maxi==-1||vol[maxi]<vol[i])){
                maxi=i;
            }
        }
        if(tot<=vol[maxi]){
            res[maxi]=tot;
            tot=0;
            c++;
        }else{
            tot-=vol[maxi];
            res[maxi]=vol[maxi];
            c++;
        }
    }
    cout<<n-c<<"\n";
    for(int i:res)cout<<i<<" ";
    
}


signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
#ifndef ONLINE_JUDGE 
#ifndef INTERACTIVE
    freopen("in","r",stdin);
#endif
    freopen("out","w",stdout);
#endif
    int t=1;
    //cin>>t;
    while (t--)
    {
        solve();
    }
}

컴파일 시 표준 에러 (stderr) 메시지

psk.cpp: In function 'int main()':
psk.cpp:64:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |     freopen("in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~
psk.cpp:66:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |     freopen("out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~

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