Submission #864097

#	Time	Username	Problem	Language	Result	Execution time	Memory
864097		Ice_man	Truck Driver (IOI23_deliveries)	C++17	Compilation error	0 ms	0 KiB

deliveries

#include <deliveries.h>
#include <iostream>
#include <vector>

#define maxn 100005
#define maxq 300005
#define INF 1000000010
#define endl '\n'

using namespace std;

int n;

int t[maxn];
long long c[maxn];

vector <pair <int , int> > v[maxn];
long long ans;

long long pom;

void dfs(int node , int parent = -1)
{
    c[node] = t[node];

    for(int i = 0; i < v[node].size(); i++)
    {
        if(v[node][i].first == parent) continue;
        dfs(v[node][i].first , node);

        ans += v[node][i].second * min(c[v[node][i].first] , pom - c[v[node][i].first]);
        c[node] += c[v[node][i].first];
    }

}

void innit(int N , vector <int> U , vector <int> V, vector <int> W, vector <int> T)
{

    n = N;
    for(int i = 0; i < U.size(); i++) v[U[i]].push_back({V[i] , W[i]});
    for(int i = 0; i < V.size(); i++) v[V[i]].push_back({U[i] , W[i]});

    for(int i = 0; i < n; i++) pom += t[i];



    for(int i = 0; i < n; i++) t[i] = T[i];
}



long long max_time(int S , int X)
{
    pom -= t[S];

    t[S] = X;
    pom += t[S];
    ans = 0;

    dfs(0);
    return ans;

}

Compilation message (stderr)

deliveries.cpp: In function 'void dfs(int, int)':
deliveries.cpp:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i = 0; i < v[node].size(); i++)
      |                    ~~^~~~~~~~~~~~~~~~
deliveries.cpp: In function 'void innit(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
deliveries.cpp:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for(int i = 0; i < U.size(); i++) v[U[i]].push_back({V[i] , W[i]});
      |                    ~~^~~~~~~~~~
deliveries.cpp:42:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i = 0; i < V.size(); i++) v[V[i]].push_back({U[i] , W[i]});
      |                    ~~^~~~~~~~~~
/usr/bin/ld: /tmp/ccYJPu3q.o: in function `main':
grader.cpp:(.text.startup+0x3f6): undefined reference to `init(int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status