Submission #554171

#	Time	Username	Problem	Language	Result	Execution time	Memory
554171		Alma	Traffic (IOI10_traffic)	C++17	Compilation error	0 ms	0 KiB

traffic

#include <bits/stdc++.h>
// #include "traffic.h"
using namespace std;
 
typedef long long int ll;
 
vector<vector<int>> graph;
vector<ll> cost;
vector<bool> visited;
vector<ll> DP;

int arenaCity;
 
ll traffic (int city) {
    if (DP[city] != -1) return DP[city];
 
    DP[city] = cost[city];
    visited[city] = true;
 
    for (int road: graph[city]) {
        if (!visited[road]) DP[city] += traffic(road);
    }
    return DP[city];
}

void untraffic (int city, int cityMaxDiff) {
    int bestCity = city;
    ll bestDiff = cityMaxDiff, maxCongestion = DP[city];

    for (int road: graph[city]) {
        if (DP[road] < maxCongestion) continue;
        ll diff = maxCongestion - DP[road];
        
        if (diff < bestDiff) {
            bestCity = road;
            bestDiff = diff;
        }
    }

    if (bestCity != city) {
        DP[city] -= DP[bestCity];
        DP[bestCity] = maxCongestion;
        arenaCity = bestCity;
        untraffic(bestCity, DP[bestCity] - DP[city])
    }
}

int LocateCentre(int N, int pp[], int S[], int D[]) {
    graph.assign(N, vector<int>());
    cost.clear();
    DP.assign(N, -1);
 
    for (int i = 0; i < N; i++) {
        graph[S[i]].push_back(D[i]);
        graph[D[i]].push_back(S[i]);
        cost.push_back(pp[i]);
    }
    visited.assign(N, false);
    ll congestion = traffic(0);
    arenaCity = 0;
    untraffic(0);    
    return arenaCity;
}

Compilation message (stderr)

traffic.cpp: In function 'void untraffic(int, int)':
traffic.cpp:44:53: error: expected ';' before '}' token
   44 |         untraffic(bestCity, DP[bestCity] - DP[city])
      |                                                     ^
      |                                                     ;
   45 |     }
      |     ~                                                
traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:61:16: error: too few arguments to function 'void untraffic(int, int)'
   61 |     untraffic(0);
      |                ^
traffic.cpp:26:6: note: declared here
   26 | void untraffic (int city, int cityMaxDiff) {
      |      ^~~~~~~~~
traffic.cpp:59:8: warning: unused variable 'congestion' [-Wunused-variable]
   59 |     ll congestion = traffic(0);
      |        ^~~~~~~~~~