提出 #40446437

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ソースコード 拡げる

#include<bits/stdc++.h>
using namespace std;

typedef long long int ll;
#define IOS ios_base::sync_with_stdio(0);  cin.tie(0); cout.tie(0);


#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

typedef tree<int,null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update>order_set;
typedef pair<int,int>pr;
#define all(i)     i.begin() , i.end()
#define ft     first
#define sn     second
#define pb push_back


#define en "\n"
#define dbg cout<<"rony\n";

#define MAXN 200010
#define inf 1e9
const ll mod = 1e9+7;

void solve()
{
    ll n;
    cin >> n;
    ll a[n];
    for(ll i = 0;i < n;i++) cin >> a[i];
    
    vector<string>v(n);

    for(ll i = 0;i < n;i++) cin >> v[i];
    
    vector<vector<ll>>dist(n,vector<ll>(n,inf));
    vector<vector<ll>>value(n,vector<ll>(n));

    for(ll i = 0;i < n;i++){
        for(ll j = 0;j < n;j++){
            if(i == j && v[i][j] == 'Y'){
                dist[i][j] = 0;
                value[i][j] = a[i];
            }
            if(i != j && v[i][j] == 'Y'){
                dist[i][j] = 1;
                value[i][j] = a[i] + a[j];
            }
        }
    }

    // floyed warshell
    for(ll k = 0;k < n;k++){
        for(ll i = 0;i < n;i++){
            for(ll j = 0;j < n;j++){
                if(dist[i][j] > dist[i][k] + dist[k][j]){
                   dist[i][j] = dist[i][k] + dist[k][j];
                   value[i][j] = value[i][k] + value[k][j] - a[k];
                }
                if(dist[i][j] == dist[i][k] + dist[k][j]){
                    if(value[i][j] < value[i][k] + value[k][j] - a[k]){
                        value[i][j] = value[i][k] + value[k][j] - a[k];
                    }
                }
            }
        }
    }

    ll q;
    cin >> q;
    while(q--)
    {
        ll s,t;
        cin >> s >> t; s--,t--;
        if(dist[s][t] == inf) cout<<"Impossible\n";
        else cout<<dist[s][t]<<" "<<value[s][t]<<en;

    }
}
int main()
{
    IOS;
   int t;
   t = 1;

   // cin >> t;
   int c = 0;
    while ( t-- )
    {
        //cout<<"Case "<<++c<<": ";
        solve();
    }
    return 0;
}   

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:89:8: warning: unused variable ‘c’ [-Wunused-variable]
   89 |    int c = 0;
      |        ^

ジャッジ結果