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Submission #339610

# Submission time Handle Problem Language Result Execution time Memory
339610 2020-12-25T17:34:58 Z eyangch Jakarta Skyscrapers (APIO15_skyscraper) C++17
0 / 100
 493 ms 262148 KB 
#include <bits/stdc++.h>

using namespace std;

struct loc{int x; int doge; int d; bool r;};

int N, M;
int b[30000], p[30000];
vector<int> graph[30000];
int dist[30000];

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> N >> M;
    for(int i = 0; i < M; i++){
        cin >> b[i] >> p[i];
        graph[b[i]].push_back(i);
    }
    fill(dist, dist+N, -1);
    deque<loc> q;
    q.push_back({b[0], 0, 0, true});
    q.push_back({b[0], 0, 0, false});
    while(!q.empty()){
        if(~dist[b[1]]) break;
        int x = q.front().x, doge = q.front().doge, d = q.front().d;
        bool r = q.front().r;
        q.pop_front();
        for(int i : graph[x]){
            if(i != doge){
                q.push_front({x, i, d, true});
                q.push_front({x, i, d, false});
            }
        }
        int dv = p[doge];
        if(!r) dv = -dv;
        x += dv;
        d++;
        while(x >= 0 && x < N && ~dist[x]){
            x += dv;
            d++;
        }
        if(x < 0 || x >= N) continue;
        dist[x] = d;
        q.push_back({x, doge, d, r});
    }
    cout << dist[b[1]] << endl;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Runtime error 489 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Runtime error 493 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Runtime error 490 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1024 KB Output is correct
2 Runtime error 488 ms 262144 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1004 KB Output is correct
2 Runtime error 490 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Halted 0 ms 0 KB -