Submission #734606

#	Time	Username	Problem	Language	Result	Execution time	Memory
734606		rahidilbayramli	Alias (COCI21_alias)	C++17	60 / 70	1028 ms	8552 KiB

alias

#include<bits/stdc++.h>
#define ll long long
#define vl vector<ll>
#define sl set<ll>
#define all(v) v.begin(), v.end()
#define f first
#define s second
#define pb push_back
#define pll pair<ll, ll>
#define pii pair<int, int>
#define tests while(t--)
using namespace std;
const ll sz = 1010;
vector<vector<ll>>graph(sz, vector<ll>(sz, 1e15));
ll n, m, i, j;
int main()
{
    set<string>st;
    map<string, ll>mp;
    string a, b;
    ll n, m, i, j, k, l, c, x, y, q;
    cin >> n >> m;
    for(i = 0; i < m; i++)
    {
        cin >> a >> b >> c;
        l = st.size();
        st.insert(a);
        if(st.size() != l)    mp[a] = st.size();
        l = st.size();
        st.insert(b);
        if(st.size() != l)    mp[b] = st.size();
        x = mp[a];
        y = mp[b];
        c = min(c, graph[x][y]);
        graph[x][y] = c;
    }
    for(i = 1; i <= n; i++)    graph[i][i] = 0;
    for(k = 1; k <= n; k++)
    {
        for(i = 1; i <= n; i++)
        {
            for(j = 1; j <= n; j++)
                graph[i][j] = min(graph[i][j], graph[i][k] + graph[k][j]);
        }
    }
    cin >> q;
    while(q--)
    {
        cin >> a >> b;
        x = mp[a], y = mp[b];
        if(graph[x][y] == 1e15)    cout << "Roger\n";
        else    cout << graph[x][y] << "\n";
    }
}

Compilation message (stderr)

alias.cpp: In function 'int main()':
alias.cpp:28:22: warning: comparison of integer expressions of different signedness: 'std::set<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   28 |         if(st.size() != l)    mp[a] = st.size();
      |            ~~~~~~~~~~^~~~
alias.cpp:31:22: warning: comparison of integer expressions of different signedness: 'std::set<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   31 |         if(st.size() != l)    mp[b] = st.size();
      |            ~~~~~~~~~~^~~~

• Subtask 1: 60 / 70