제출 #371081

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
371081		Atill83	Poklon (COCI17_poklon7)	C++14	120 / 120	754 ms	253156 KiB

poklon

#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 5e6+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
int l[MAXN], r[MAXN];
int Gidx = 0;
string idx[MAXN];
int len[MAXN];
int say[MAXN];
int do_it(int v){
    if(v < 0){
        int cur = -v, pow = 1;
        while(cur){
            idx[Gidx] += (char)('0' + cur % 2);
            pow = pow * 2 % mod;
            cur /= 2;
        }
        reverse(idx[Gidx].begin(), idx[Gidx].end());
        say[Gidx] = -v;
        len[Gidx] = idx[Gidx].length();
        return Gidx++;
    }

    int left = do_it(l[v]), right = do_it(r[v]);
    int winner = -1;
    if(len[left] != len[right]){
        winner = (len[left] > len[right] ? left : right);
    }else{
        winner = (say[left] > say[right] ? left : right);
    }
    len[winner]++;
    return winner; 
}



int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;

    for(int i = 1; i <= n; i++)
        cin>>l[i]>>r[i];
    int ans = do_it(1);
    string & cev = idx[ans];

    while(cev.size() != len[ans])
        cev += '0';
    cerr<<ans<<endl;
    cout<<cev<<endl;



    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

컴파일 시 표준 에러 (stderr) 메시지

poklon.cpp: In function 'int main()':
poklon.cpp:63:22: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   63 |     while(cev.size() != len[ans])
      |           ~~~~~~~~~~~^~~~~~~~~~~

• Subtask 1: 120 / 120