제출 #1063096

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1063096		Ahmed57	Split the Attractions (IOI19_split)	C++17	0 / 100	5 ms	5244 KiB

split

#include "bits/stdc++.h"
using namespace std;
vector<int> adj[100001];
vector<pair<int,int>> v;
int vis[100001];
void precomp(int i,int dep){
    vis[i] = 1;
    v.push_back({dep,i});
    for(auto j:adj[i]){
        if(!vis[j])continue;
        precomp(j,dep+1);
    }
}

vector<int> find_split(int n, int a, int b, int c, vector<int> p,vector<int> q){
    for(int i = 0;i<p.size();i++){
        adj[p[i]].push_back(q[i]);
        adj[q[i]].push_back(p[i]);
    }
    int inda = 1 , indb = 2 , indc = 3;
    if(a>b){swap(a,b);swap(inda,indb);}
    if(b>c){swap(b,c);swap(indb,indc);}
    if(a>b){swap(a,b);swap(inda,indb);}
    if(b>c){swap(b,c);swap(indb,indc);}
    precomp(0,0);
    vector<int> ans(n,0);
    for(int i = 0;i<v.size();i++){
        if(i<a)ans[v[i].second] = inda;
        else if(i<b+a)ans[v[i].second] = indb;
        else ans[v[i].second] = indc;
    }
}

컴파일 시 표준 에러 (stderr) 메시지

split.cpp: In function 'std::vector<int> find_split(int, int, int, int, std::vector<int>, std::vector<int>)':
split.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i = 0;i<p.size();i++){
      |                   ~^~~~~~~~~
split.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i = 0;i<v.size();i++){
      |                   ~^~~~~~~~~
split.cpp:32:1: warning: no return statement in function returning non-void [-Wreturn-type]
   32 | }
      | ^

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