제출 #365198

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
365198		CodeKracker	기지국 (IOI20_stations)	C++14	0 / 100	1218 ms	1232 KiB

stations

/*input

*/
/**
    Author: Kristopher Paul
    Date Created: 11-02-2021
**/
#include<bits/stdc++.h>
#include<stdio.h>
//#include<unordered_map>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define ll long long
//#define int ll
#define pb push_back
#define INF 1e18
#define MOD 1000000007
//#define MOD 998244353
#define mp make_pair
const double PI=3.141592653589793238462643383279502884197169399375105820974944;
#define REP(i,n) for (int i = 0; i < n; i++)
#define FOR(i,a,b) for (int i = a; i < b; i++)
#define REPD(i,n) for (int i = n-1; i >= 0; i--)
#define FORD(i,a,b) for (int i = a; i >= b; i--)
#define remax(a,b) a = max(a,b)
#define remin(a,b) a = min(a,b)
#define umap map
#define pii pair<int,int>
#define F first
#define S second
#define mii map<int,int>
#define vi vector<int>
#define vvi vector<vi>
#define itr :: iterator it
#define all(v) v.begin(),v.end()
#define WL(t) while(t--)
#define gcd(a,b) __gcd((a),(b))
#define lcm(a,b) ((a)*(b))/gcd((a),(b))
#define out(x) cout << #x << " is " << x << endl
#define FastIO ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
using namespace std;

//using namespace __gnu_pbds;

//typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> pbds; // set
//typedef tree<int,null_type,less_equal<int>,rb_tree_tag,tree_order_statistics_node_update> pbds; // multiset

int ModExp(int x,int y,int m){
    int res = 1;
    x = x % m;
    while (y > 0)
    {
        if (y & 1)
            res = (res*x) % m;

        y = y>>1;
        x = (x*x) % m;
    }
    return res;
}

vi adj[1005];
int val[1005];

int dfs(int cv,int p,int c){
    FOR(i,0,adj[cv].size()){
        if(adj[cv][i] != p){
            c = dfs(adj[cv][i],cv,c);
        }
    }
    val[cv] = c;
    return c+1;
}

vi label(int n,int k,vi u,vi v){
    FOR(i,0,n){
        adj[i].clear();
    }
    FOR(i,0,n-1){
        adj[u[i]].pb(v[i]);
        adj[v[i]].pb(u[i]);
    }
    dfs(0,-1,0);
    vi ans;
    FOR(i,0,n){
        ans.pb(val[i]);
    }
    return ans;
}

int find_next_station(int s,int t,vi c){
    if(t <= c[0]){
        return c[0];
    }else if(t <= c[1]){
        return c[1];
    }else{
        return c[2];
    }
}

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'int dfs(int, int, int)':
stations.cpp:22:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 | #define FOR(i,a,b) for (int i = a; i < b; i++)
......
   66 |     FOR(i,0,adj[cv].size()){
      |         ~~~~~~~~~~~~~~~~~~            
stations.cpp:66:5: note: in expansion of macro 'FOR'
   66 |     FOR(i,0,adj[cv].size()){
      |     ^~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61