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Submission #108075

# Submission time Handle Problem Language Result Execution time Memory
108075 2019-04-27T07:23:54 Z autumn_eel Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 82 ms 39672 KB 
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define INF 0x3f3f3f3f
using namespace std;
typedef pair<int,int>P;
typedef long long ll;

int b[50000],t[50000];
int d[2200][2200];
vector<int>v[2200];

struct st{
	int a,b,c;
};
bool operator<(st a,st b){
	return a.c>b.c;
}
int main(){
	int n,m;cin>>n>>m;
	rep(i,m){
		scanf("%d%d",&b[i],&t[i]);
		v[b[i]].push_back(t[i]);
	}
	memset(d,0x3f,sizeof(d));
	d[b[0]][0]=0;
	priority_queue<st>que;
	que.push({b[0],0,0});
	while(!que.empty()){
		st p=que.top();que.pop();
		int c=d[p.a][p.b];
		if(c!=p.c)continue;
		if(p.b==0){
			for(int i:v[p.a]){
				if(d[p.a][i]>c){
					d[p.a][i]=c;
					que.push({p.a,i,c});
				}
			}
		}
		else{
			int v;
			if((v=p.a-p.b)>=0&&d[v][p.b]>c+1){
				d[v][p.b]=c+1;
				que.push({v,p.b,c+1});
			}
			if((v=p.a+p.b)<n&&d[v][p.b]>c+1){
				d[v][p.b]=c+1;
				que.push({v,p.b,c+1});
			}
			if(d[p.a][0]>c){
				d[p.a][0]=c;
				que.push({p.a,0,c});
			}
		}
	}
	int ans=*min_element(d[b[1]],d[b[1]]+2200);
	if(ans==INF)puts("-1");
	else cout<<ans<<endl;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&b[i],&t[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 19328 KB Output is correct
2 Correct 18 ms 19456 KB Output is correct
3 Correct 18 ms 19328 KB Output is correct
4 Correct 18 ms 19320 KB Output is correct
5 Correct 21 ms 19328 KB Output is correct
6 Correct 17 ms 19328 KB Output is correct
7 Correct 17 ms 19328 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19328 KB Output is correct
2 Correct 19 ms 19328 KB Output is correct
3 Correct 19 ms 19320 KB Output is correct
4 Correct 19 ms 19456 KB Output is correct
5 Correct 17 ms 19448 KB Output is correct
6 Correct 20 ms 19328 KB Output is correct
7 Correct 18 ms 19320 KB Output is correct
8 Correct 18 ms 19328 KB Output is correct
9 Correct 17 ms 19328 KB Output is correct
10 Correct 20 ms 19328 KB Output is correct
11 Correct 18 ms 19456 KB Output is correct
12 Correct 20 ms 19320 KB Output is correct
13 Correct 16 ms 19328 KB Output is correct
14 Correct 17 ms 19456 KB Output is correct
15 Correct 19 ms 19456 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 19328 KB Output is correct
2 Correct 18 ms 19328 KB Output is correct
3 Correct 19 ms 19328 KB Output is correct
4 Correct 22 ms 19328 KB Output is correct
5 Correct 17 ms 19328 KB Output is correct
6 Correct 16 ms 19328 KB Output is correct
7 Correct 17 ms 19328 KB Output is correct
8 Correct 19 ms 19328 KB Output is correct
9 Correct 20 ms 19320 KB Output is correct
10 Correct 19 ms 19328 KB Output is correct
11 Correct 19 ms 19376 KB Output is correct
12 Correct 18 ms 19328 KB Output is correct
13 Correct 18 ms 19328 KB Output is correct
14 Correct 20 ms 19456 KB Output is correct
15 Correct 18 ms 19456 KB Output is correct
16 Correct 18 ms 19320 KB Output is correct
17 Correct 21 ms 19456 KB Output is correct
18 Correct 21 ms 19356 KB Output is correct
19 Correct 20 ms 19328 KB Output is correct
20 Correct 19 ms 19448 KB Output is correct
21 Correct 20 ms 19372 KB Output is correct
22 Correct 18 ms 19300 KB Output is correct
23 Correct 22 ms 19328 KB Output is correct
24 Correct 24 ms 19328 KB Output is correct
25 Correct 21 ms 19320 KB Output is correct
26 Correct 22 ms 19328 KB Output is correct
27 Correct 21 ms 19328 KB Output is correct
28 Correct 20 ms 19456 KB Output is correct
29 Correct 26 ms 19328 KB Output is correct
30 Correct 21 ms 19328 KB Output is correct
31 Correct 21 ms 19328 KB Output is correct
32 Correct 22 ms 19328 KB Output is correct
33 Correct 31 ms 19456 KB Output is correct
34 Correct 28 ms 19448 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 19328 KB Output is correct
2 Correct 18 ms 19384 KB Output is correct
3 Correct 19 ms 19456 KB Output is correct
4 Correct 17 ms 19328 KB Output is correct
5 Correct 17 ms 19328 KB Output is correct
6 Correct 18 ms 19328 KB Output is correct
7 Correct 17 ms 19328 KB Output is correct
8 Correct 17 ms 19328 KB Output is correct
9 Correct 17 ms 19328 KB Output is correct
10 Correct 19 ms 19328 KB Output is correct
11 Correct 18 ms 19456 KB Output is correct
12 Correct 17 ms 19192 KB Output is correct
13 Correct 17 ms 19328 KB Output is correct
14 Correct 19 ms 19456 KB Output is correct
15 Correct 25 ms 19456 KB Output is correct
16 Correct 19 ms 19328 KB Output is correct
17 Correct 20 ms 19456 KB Output is correct
18 Correct 18 ms 19328 KB Output is correct
19 Correct 18 ms 19328 KB Output is correct
20 Correct 19 ms 19456 KB Output is correct
21 Correct 18 ms 19328 KB Output is correct
22 Correct 20 ms 19328 KB Output is correct
23 Correct 20 ms 19328 KB Output is correct
24 Correct 23 ms 19456 KB Output is correct
25 Correct 19 ms 19428 KB Output is correct
26 Correct 19 ms 19328 KB Output is correct
27 Correct 21 ms 19448 KB Output is correct
28 Correct 21 ms 19456 KB Output is correct
29 Correct 23 ms 19328 KB Output is correct
30 Correct 19 ms 19328 KB Output is correct
31 Correct 20 ms 19328 KB Output is correct
32 Correct 21 ms 19328 KB Output is correct
33 Correct 31 ms 19448 KB Output is correct
34 Correct 26 ms 19456 KB Output is correct
35 Correct 41 ms 20088 KB Output is correct
36 Correct 21 ms 19456 KB Output is correct
37 Correct 62 ms 20224 KB Output is correct
38 Correct 57 ms 20276 KB Output is correct
39 Correct 69 ms 20280 KB Output is correct
40 Correct 73 ms 20280 KB Output is correct
41 Correct 55 ms 20416 KB Output is correct
42 Correct 23 ms 19840 KB Output is correct
43 Correct 22 ms 19832 KB Output is correct
44 Correct 25 ms 19840 KB Output is correct
45 Correct 78 ms 20280 KB Output is correct
46 Correct 69 ms 20408 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 19328 KB Output is correct
2 Correct 17 ms 19328 KB Output is correct
3 Correct 18 ms 19328 KB Output is correct
4 Correct 20 ms 19328 KB Output is correct
5 Correct 20 ms 19328 KB Output is correct
6 Correct 20 ms 19328 KB Output is correct
7 Correct 18 ms 19320 KB Output is correct
8 Correct 19 ms 19328 KB Output is correct
9 Correct 17 ms 19328 KB Output is correct
10 Correct 20 ms 19328 KB Output is correct
11 Correct 20 ms 19328 KB Output is correct
12 Correct 18 ms 19328 KB Output is correct
13 Correct 20 ms 19456 KB Output is correct
14 Correct 22 ms 19456 KB Output is correct
15 Correct 22 ms 19428 KB Output is correct
16 Correct 17 ms 19328 KB Output is correct
17 Correct 21 ms 19464 KB Output is correct
18 Correct 18 ms 19328 KB Output is correct
19 Correct 18 ms 19328 KB Output is correct
20 Correct 18 ms 19456 KB Output is correct
21 Correct 18 ms 19328 KB Output is correct
22 Correct 21 ms 19328 KB Output is correct
23 Correct 22 ms 19328 KB Output is correct
24 Correct 26 ms 19420 KB Output is correct
25 Correct 21 ms 19456 KB Output is correct
26 Correct 20 ms 19328 KB Output is correct
27 Correct 18 ms 19328 KB Output is correct
28 Correct 23 ms 19328 KB Output is correct
29 Correct 22 ms 19356 KB Output is correct
30 Correct 20 ms 19328 KB Output is correct
31 Correct 22 ms 19328 KB Output is correct
32 Correct 21 ms 19328 KB Output is correct
33 Correct 30 ms 19328 KB Output is correct
34 Correct 31 ms 19448 KB Output is correct
35 Correct 45 ms 20116 KB Output is correct
36 Correct 23 ms 19456 KB Output is correct
37 Correct 59 ms 20152 KB Output is correct
38 Correct 59 ms 20408 KB Output is correct
39 Correct 58 ms 20288 KB Output is correct
40 Correct 60 ms 20280 KB Output is correct
41 Correct 56 ms 20460 KB Output is correct
42 Correct 24 ms 19736 KB Output is correct
43 Correct 24 ms 19840 KB Output is correct
44 Correct 23 ms 19804 KB Output is correct
45 Correct 77 ms 20280 KB Output is correct
46 Correct 82 ms 20416 KB Output is correct
47 Runtime error 53 ms 39672 KB Execution killed with signal 11 (could be triggered by violating memory limits)
48 Halted 0 ms 0 KB -