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Submission #1097437

# Submission time Handle Problem Language Result Execution time Memory
1097437 2024-10-07T11:31:53 Z Kerim Jakarta Skyscrapers (APIO15_skyscraper) C++17
36 / 100
 288 ms 262144 KB 
#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 2e3+5;
const ll INF = 1e18;
vector<pii> adj[N];
ll dis[N];
 
int main(){
    int n, m;
    scanf("%d%d", &n, &m);
    int s, t;
    for(int i = 1; i <= m; ++i){
        int x, p;
        scanf("%d%d", &x, &p), x++;
        if (i == 1)
            s = x;
        if (i == 2)
            t = x;
        for(int ad = 1;; ++ad){
            if(x-ad*p < 1 and x+ad*p > n)
                break;
            if(x-ad*p >= 1)
                adj[x].pb({x-ad*p, ad});
            if(x+ad*p <= n)
                adj[x].pb({x+ad*p, ad});
        }
    }
    for(int i = 1; i <= n; ++i)
        dis[i] = INF;
    priority_queue<pli, vector<pli>, greater<pli>> pq;
    pq.push({0, s});
    dis[s] = 0;
    while(!pq.empty()){
        pli P = pq.top();
        pq.pop();
        ll val = P.ff;
        int x = P.ss;
        if(dis[x] != val)
            continue;
        tr(it, adj[x]){
            int u = it->ff, w = it->ss;
            if(umin(dis[u], dis[x]+w))
                pq.push({dis[u], u});
        }
    }
    if(dis[t] == INF)
        puts("-1");
    else
        printf("%lld\n", dis[t]);
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:22:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         scanf("%d%d", &x, &p), x++;
      |         ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:44:12: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
   44 |     dis[s] = 0;
      |     ~~~~~~~^~~
skyscraper.cpp:58:13: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   58 |     if(dis[t] == INF)
      |        ~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 484 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 2512 KB Output is correct
13 Correct 3 ms 2508 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 392 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 2860 KB Output is correct
13 Correct 3 ms 2512 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 44 ms 32616 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 47 ms 33552 KB Output is correct
27 Correct 45 ms 33472 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 2 ms 1492 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 2 ms 860 KB Output is correct
32 Correct 1 ms 952 KB Output is correct
33 Correct 3 ms 2140 KB Output is correct
34 Correct 3 ms 2140 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 488 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 3 ms 2512 KB Output is correct
13 Correct 3 ms 2660 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 47 ms 32392 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 496 KB Output is correct
26 Correct 52 ms 33488 KB Output is correct
27 Correct 55 ms 33460 KB Output is correct
28 Correct 1 ms 600 KB Output is correct
29 Correct 2 ms 1624 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 4 ms 2140 KB Output is correct
34 Correct 4 ms 2140 KB Output is correct
35 Correct 6 ms 2140 KB Output is correct
36 Correct 2 ms 604 KB Output is correct
37 Correct 8 ms 3932 KB Output is correct
38 Correct 9 ms 3248 KB Output is correct
39 Correct 8 ms 3676 KB Output is correct
40 Correct 8 ms 3420 KB Output is correct
41 Correct 10 ms 3420 KB Output is correct
42 Runtime error 288 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 608 KB Output is correct
12 Correct 3 ms 2508 KB Output is correct
13 Correct 3 ms 2512 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 46 ms 32592 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 344 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 2 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 48 ms 33424 KB Output is correct
27 Correct 47 ms 33280 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 2 ms 1512 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 2 ms 860 KB Output is correct
32 Correct 1 ms 860 KB Output is correct
33 Correct 3 ms 2140 KB Output is correct
34 Correct 3 ms 2140 KB Output is correct
35 Correct 6 ms 2140 KB Output is correct
36 Correct 1 ms 604 KB Output is correct
37 Correct 8 ms 3932 KB Output is correct
38 Correct 8 ms 3420 KB Output is correct
39 Correct 9 ms 3672 KB Output is correct
40 Correct 8 ms 3520 KB Output is correct
41 Correct 11 ms 3416 KB Output is correct
42 Runtime error 279 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -