제출 #831551

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
831551		otarius	Traffic (IOI10_traffic)	C++17	컴파일 에러	0 ms	0 KiB

traffic

#include "traffic.h"
#include <iostream>
#include <algorithm>
#include <vector>
#include <set>
#include <cstring>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>
using namespace std;

#define ff first
#define sc second
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define pii pair <int, int>
#define ull unsigned long long

// #define int long long
// #define int unsigned long long

const ll inf = 1e18 + 7;
const ll weirdMod = 998244353;

int x, y;
vector<int> G[1000005];
ll sum[1000005], mn = inf, ans;
void dfs(int v, int par) {
    for (int u : G[v]) {
        if (u != par) {
            dfs(u, v);
            sum[v] += sum[u];
        }
    }
}
void solve(int v, int par) {
    ll mx = sum[0] - sum[v];
    for (int u : G[v]) {
        if (u != par) {
            mx = max(mx, sum[u]);
            solve(u, v);
        }
    } if (mx < mn) {
        mn = mx; ans = v;
    }
}
int LocateCentre(int n, int[] p, int[] s, int[] d) {
    for (int i = 0; i < n; i++)
        sum[i] = p[i];
    for (int i = 0; i < n - 1; i++) {
        G[s[i]].pb(d[i]); G[d[i]].pb(s[i]);
    } dfs(0, -1); solve(0, -1);
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

traffic.cpp:49:31: error: expected ',' or '...' before 'p'
   49 | int LocateCentre(int n, int[] p, int[] s, int[] d) {
      |                               ^
traffic.cpp: In function 'int LocateCentre(int, int*)':
traffic.cpp:51:18: error: 'p' was not declared in this scope
   51 |         sum[i] = p[i];
      |                  ^
traffic.cpp:53:11: error: 's' was not declared in this scope
   53 |         G[s[i]].pb(d[i]); G[d[i]].pb(s[i]);
      |           ^
traffic.cpp:53:20: error: 'd' was not declared in this scope
   53 |         G[s[i]].pb(d[i]); G[d[i]].pb(s[i]);
      |                    ^