oj.uz

Submission #33789

# Submission time Handle Problem Language Result Execution time Memory
33789 2017-11-02T00:03:19 Z sinhriv Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 139 ms 62992 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int N = 30030;
const int base = 180;
 
	#define Data pair < int, pair < int, int > >


int n, m;
int f[N][base];
int d[N][base];
vector < int > doges[N];
list < Data > que[N + N];
 
bool minimize(int &u, int v){
	if(u > v){
		u = v;
		return true;
	}
	return false;
}
 
int main(){
	if(fopen("1.inp", "r")){
		freopen("1.inp", "r", stdin);
	}
 
	scanf("%d%d", &n, &m);
 
	int start = -1, finish = -1;
 
	for(int i = 1; i <= m; ++i){
		int u, v;
		scanf("%d%d", &u, &v);
 
		if(start == -1){
			start = u;
		}
		else if(finish == -1){
			finish = u;
		}
 
		doges[u].push_back(v);
	}
 
 
	priority_queue < Data, vector < Data >, greater < Data > > heap;
 
	memset(f, 60, sizeof f);
	f[start][0] = 0;


 
	que[0].emplace_back(0, make_pair(start, 0));
	for(int t = 0; t < N + N; ++t){
		for(auto p : que[t]){
			int u = p.second.first;;
			int x = p.second.second;
			heap.pop();
	 
			if(d[u][x] == 1) continue;
			d[u][x] = 1;
	 
	 
			if(u == finish){
				cout << f[u][x];
				return 0;
			}
	 
			if(u - x >= 0){
				if(minimize(f[u - x][x], f[u][x] + 1)){
				 que[f[u - x][x]].emplace_back(f[u - x][x], make_pair(u - x, x));
				}
			}
			if(u + x < n){
				if(minimize(f[u + x][x], f[u][x] + 1)){
					que[f[u + x][x]].emplace_back(f[u + x][x], make_pair(u + x, x));
				}
			}
			
			for(int val : doges[u]){
				if(val < base){
					if(u - val >= 0){
						if(minimize(f[u - val][val], f[u][x] + 1)){
							que[f[u - val][val]].emplace_back(f[u - val][val], make_pair(u - val, val));
						}
					}
					if(u + val < n){
						if(minimize(f[u + val][val], f[u][x] + 1)){
							que[f[u + val][val]].emplace_back(f[u + val][val], make_pair(u + val, val));
						}
					}
				}
				else{
					for(int t = 1; t < N / base; ++t){
						if(u - t * val < 0 && u + t * val >= n) break;
						if(u - t * val >= 0){
							if(minimize(f[u - t * val][0], f[u][x] + t)){
								que[f[u - t * val][0]].emplace_back(f[u - t * val][0], make_pair(u - t * val, 0));
							}
						}
						if(u + t * val < n){
							if(minimize(f[u + t * val][0], f[u][x] + t)){
								que[f[u + t * val][0]].emplace_back(f[u + t * val][0], make_pair(u + t * val, 0));
							}
						}
					}
				}
			}
		}
	}
	cout << -1;
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:27:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen("1.inp", "r", stdin);
                               ^
skyscraper.cpp:30:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
skyscraper.cpp:36:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &u, &v);
                        ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 46360 KB Output is correct
2 Correct 6 ms 46360 KB Output is correct
3 Correct 3 ms 46360 KB Output is correct
4 Correct 3 ms 46360 KB Output is correct
5 Correct 3 ms 46360 KB Output is correct
6 Correct 6 ms 46360 KB Output is correct
7 Correct 0 ms 46360 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 46360 KB Output is correct
2 Correct 0 ms 46360 KB Output is correct
3 Correct 3 ms 46360 KB Output is correct
4 Correct 3 ms 46360 KB Output is correct
5 Correct 0 ms 46360 KB Output is correct
6 Correct 0 ms 46360 KB Output is correct
7 Correct 3 ms 46360 KB Output is correct
8 Correct 0 ms 46360 KB Output is correct
9 Correct 6 ms 46360 KB Output is correct
10 Correct 9 ms 46360 KB Output is correct
11 Correct 3 ms 46360 KB Output is correct
12 Correct 6 ms 46360 KB Output is correct
13 Correct 3 ms 46360 KB Output is correct
14 Correct 3 ms 46624 KB Output is correct
15 Correct 6 ms 46492 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 46360 KB Output is correct
2 Correct 0 ms 46360 KB Output is correct
3 Correct 0 ms 46360 KB Output is correct
4 Correct 3 ms 46360 KB Output is correct
5 Correct 3 ms 46360 KB Output is correct
6 Correct 0 ms 46360 KB Output is correct
7 Correct 0 ms 46360 KB Output is correct
8 Correct 3 ms 46360 KB Output is correct
9 Correct 0 ms 46360 KB Output is correct
10 Correct 3 ms 46360 KB Output is correct
11 Correct 6 ms 46360 KB Output is correct
12 Correct 6 ms 46360 KB Output is correct
13 Correct 9 ms 46360 KB Output is correct
14 Correct 3 ms 46624 KB Output is correct
15 Correct 3 ms 46492 KB Output is correct
16 Correct 0 ms 46360 KB Output is correct
17 Correct 3 ms 46492 KB Output is correct
18 Correct 9 ms 46360 KB Output is correct
19 Correct 0 ms 46360 KB Output is correct
20 Correct 0 ms 46492 KB Output is correct
21 Correct 0 ms 46360 KB Output is correct
22 Correct 6 ms 46360 KB Output is correct
23 Correct 6 ms 46624 KB Output is correct
24 Correct 0 ms 46624 KB Output is correct
25 Correct 0 ms 46492 KB Output is correct
26 Correct 6 ms 46492 KB Output is correct
27 Correct 9 ms 46624 KB Output is correct
28 Correct 6 ms 47152 KB Output is correct
29 Correct 9 ms 49264 KB Output is correct
30 Correct 0 ms 47152 KB Output is correct
31 Correct 9 ms 47944 KB Output is correct
32 Correct 6 ms 47416 KB Output is correct
33 Correct 13 ms 52036 KB Output is correct
34 Correct 13 ms 49396 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 46360 KB Output is correct
2 Correct 0 ms 46360 KB Output is correct
3 Correct 3 ms 46360 KB Output is correct
4 Correct 3 ms 46360 KB Output is correct
5 Correct 13 ms 46360 KB Output is correct
6 Correct 0 ms 46360 KB Output is correct
7 Correct 0 ms 46360 KB Output is correct
8 Correct 0 ms 46360 KB Output is correct
9 Correct 0 ms 46360 KB Output is correct
10 Correct 3 ms 46360 KB Output is correct
11 Correct 3 ms 46360 KB Output is correct
12 Correct 3 ms 46360 KB Output is correct
13 Correct 0 ms 46360 KB Output is correct
14 Correct 0 ms 46624 KB Output is correct
15 Correct 0 ms 46492 KB Output is correct
16 Correct 0 ms 46360 KB Output is correct
17 Correct 6 ms 46492 KB Output is correct
18 Correct 6 ms 46360 KB Output is correct
19 Correct 3 ms 46360 KB Output is correct
20 Correct 0 ms 46492 KB Output is correct
21 Correct 0 ms 46360 KB Output is correct
22 Correct 3 ms 46360 KB Output is correct
23 Correct 3 ms 46624 KB Output is correct
24 Correct 6 ms 46624 KB Output is correct
25 Correct 3 ms 46492 KB Output is correct
26 Correct 3 ms 46492 KB Output is correct
27 Correct 3 ms 46624 KB Output is correct
28 Correct 6 ms 47152 KB Output is correct
29 Correct 9 ms 49264 KB Output is correct
30 Correct 3 ms 47152 KB Output is correct
31 Correct 6 ms 47944 KB Output is correct
32 Correct 3 ms 47416 KB Output is correct
33 Correct 16 ms 52036 KB Output is correct
34 Correct 3 ms 49396 KB Output is correct
35 Correct 6 ms 46888 KB Output is correct
36 Correct 6 ms 46492 KB Output is correct
37 Correct 9 ms 46888 KB Output is correct
38 Correct 16 ms 46888 KB Output is correct
39 Correct 9 ms 46624 KB Output is correct
40 Correct 9 ms 46624 KB Output is correct
41 Correct 9 ms 46756 KB Output is correct
42 Correct 9 ms 46704 KB Output is correct
43 Correct 13 ms 46704 KB Output is correct
44 Correct 9 ms 46632 KB Output is correct
45 Correct 139 ms 62992 KB Output is correct
46 Correct 99 ms 53356 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 46360 KB Output is correct
2 Correct 0 ms 46360 KB Output is correct
3 Correct 3 ms 46360 KB Output is correct
4 Correct 0 ms 46360 KB Output is correct
5 Correct 6 ms 46360 KB Output is correct
6 Correct 0 ms 46360 KB Output is correct
7 Correct 0 ms 46360 KB Output is correct
8 Correct 0 ms 46360 KB Output is correct
9 Correct 3 ms 46360 KB Output is correct
10 Correct 3 ms 46360 KB Output is correct
11 Correct 6 ms 46360 KB Output is correct
12 Correct 3 ms 46360 KB Output is correct
13 Correct 3 ms 46360 KB Output is correct
14 Correct 3 ms 46624 KB Output is correct
15 Correct 3 ms 46492 KB Output is correct
16 Correct 3 ms 46360 KB Output is correct
17 Correct 0 ms 46492 KB Output is correct
18 Correct 0 ms 46360 KB Output is correct
19 Correct 0 ms 46360 KB Output is correct
20 Correct 9 ms 46492 KB Output is correct
21 Correct 3 ms 46360 KB Output is correct
22 Correct 0 ms 46360 KB Output is correct
23 Correct 3 ms 46624 KB Output is correct
24 Correct 0 ms 46624 KB Output is correct
25 Correct 3 ms 46492 KB Output is correct
26 Correct 0 ms 46492 KB Output is correct
27 Correct 0 ms 46624 KB Output is correct
28 Correct 3 ms 47152 KB Output is correct
29 Correct 13 ms 49264 KB Output is correct
30 Correct 9 ms 47152 KB Output is correct
31 Correct 6 ms 47944 KB Output is correct
32 Correct 6 ms 47416 KB Output is correct
33 Correct 13 ms 52036 KB Output is correct
34 Correct 6 ms 49396 KB Output is correct
35 Correct 13 ms 46888 KB Output is correct
36 Correct 6 ms 46492 KB Output is correct
37 Correct 6 ms 46888 KB Output is correct
38 Correct 13 ms 46888 KB Output is correct
39 Correct 9 ms 46624 KB Output is correct
40 Correct 19 ms 46624 KB Output is correct
41 Correct 13 ms 46756 KB Output is correct
42 Correct 6 ms 46704 KB Output is correct
43 Correct 3 ms 46704 KB Output is correct
44 Correct 6 ms 46632 KB Output is correct
45 Correct 136 ms 62992 KB Output is correct
46 Correct 109 ms 53356 KB Output is correct
47 Correct 13 ms 47944 KB Output is correct
48 Correct 9 ms 46888 KB Output is correct
49 Correct 13 ms 46888 KB Output is correct
50 Correct 9 ms 46756 KB Output is correct
51 Correct 19 ms 48736 KB Output is correct
52 Correct 33 ms 48868 KB Output is correct
53 Correct 13 ms 47152 KB Output is correct
54 Correct 3 ms 47020 KB Output is correct
55 Correct 3 ms 47548 KB Output is correct
56 Correct 19 ms 48736 KB Output is correct
57 Correct 0 ms 46492 KB Output is correct
58 Correct 33 ms 49604 KB Output is correct
59 Correct 26 ms 49208 KB Output is correct
60 Correct 19 ms 49216 KB Output is correct
61 Correct 29 ms 48960 KB Output is correct
62 Incorrect 33 ms 48340 KB Output isn't correct
63 Halted 0 ms 0 KB -