oj.uz

답안 #938796

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
938796 2024-03-05T14:28:50 Z vjudge1 Toll (BOI17_toll) C++17
7 / 100
 3000 ms 5020 KB 
#include <bits/stdc++.h>

#define int long long
#define ff first
#define ss second
using namespace std;
const int inf = 1e9;
void dfs(vector<int>& dp, vector<vector<pair<int,int>>>& graph, int cur)
{
    for (auto a : graph[cur])
    {
        dp[a.ff] = min(dp[a.ff],dp[cur]+a.ss);
        dfs(dp,graph,a.ff);
    }
}
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int k,n,m,o;
    cin >> k >> n >> m >> o;
    if (k==1)
    {
        vector<int> edges(n-1,inf);
        for (int i = 0; i < m; i++)
        {
            int a,b,c;
            cin >> a >> b >> c;
            
            edges[a] = c;
            
        }
        vector<int> pref_sum(n-1,0);
        pref_sum[0] = edges[0];
        for (int i = 1; i < n-1; i++)
            pref_sum[i] = pref_sum[i-1]+edges[i];
            
        auto sum = [&](int l,int r)
        {
          return pref_sum[r] - (l > 0 ? pref_sum[l-1] : 0LL);  
        };
        
        for (int i = 0; i < o; i++)
        {
            int a,b;
            cin >> a >> b;
            if (sum(a,b-1) >= inf)
                cout << -1 << '\n';
            else
                cout << sum(a,b-1) << '\n';
        }
    }
    else 
    {
        //turk milleti meslin baban!!!!
        vector<vector<pair<int,int>>> graph(n);
        for (int i = 0; i < m; i++)
        {
            int a,b,t;
            cin >> a >> b >> t;
            graph[a].push_back({b,t});

        }
        vector<int> dp(n,inf);
        dp[0] = 0;
        dfs(dp,graph,0);
        
        for (int i = 0; i < o; i++)
        {
            int a,b;
            cin >> a >> b;
            if (dp[b] >= inf)
                cout << "-1\n";
            else
                cout << dp[b] << '\n';
        }
    }
    return 0;
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 1116 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 11 ms 1272 KB Output is correct
9 Correct 10 ms 1368 KB Output is correct
10 Correct 3 ms 1112 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3064 ms 5020 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 1116 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 11 ms 1272 KB Output is correct
9 Correct 10 ms 1368 KB Output is correct
10 Correct 3 ms 1112 KB Output is correct
11 Execution timed out 3064 ms 5020 KB Time limit exceeded
12 Halted 0 ms 0 KB -