oj.uz

Submission #33792

# Submission time Handle Problem Language Result Execution time Memory
33792 2017-11-02T00:06:22 Z sinhriv Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 86336 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int N = 30030;
const int base = 200;
 
	#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 * 15];
 
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 * 15; ++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 + 5; ++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 3 ms 60200 KB Output is correct
2 Correct 6 ms 60200 KB Output is correct
3 Correct 9 ms 60200 KB Output is correct
4 Correct 6 ms 60200 KB Output is correct
5 Correct 3 ms 60200 KB Output is correct
6 Correct 3 ms 60200 KB Output is correct
7 Correct 9 ms 60200 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 60200 KB Output is correct
2 Correct 3 ms 60200 KB Output is correct
3 Correct 6 ms 60200 KB Output is correct
4 Correct 6 ms 60200 KB Output is correct
5 Correct 6 ms 60200 KB Output is correct
6 Correct 6 ms 60200 KB Output is correct
7 Correct 9 ms 60200 KB Output is correct
8 Correct 9 ms 60200 KB Output is correct
9 Correct 3 ms 60200 KB Output is correct
10 Correct 0 ms 60200 KB Output is correct
11 Correct 0 ms 60200 KB Output is correct
12 Correct 6 ms 60200 KB Output is correct
13 Correct 3 ms 60200 KB Output is correct
14 Correct 3 ms 60464 KB Output is correct
15 Correct 3 ms 60332 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 60200 KB Output is correct
2 Correct 3 ms 60200 KB Output is correct
3 Correct 0 ms 60200 KB Output is correct
4 Correct 3 ms 60200 KB Output is correct
5 Correct 3 ms 60200 KB Output is correct
6 Correct 6 ms 60200 KB Output is correct
7 Correct 9 ms 60200 KB Output is correct
8 Correct 9 ms 60200 KB Output is correct
9 Correct 3 ms 60200 KB Output is correct
10 Correct 0 ms 60200 KB Output is correct
11 Correct 6 ms 60200 KB Output is correct
12 Correct 13 ms 60200 KB Output is correct
13 Correct 0 ms 60200 KB Output is correct
14 Correct 9 ms 60464 KB Output is correct
15 Correct 9 ms 60332 KB Output is correct
16 Correct 3 ms 60200 KB Output is correct
17 Correct 9 ms 60332 KB Output is correct
18 Correct 3 ms 60200 KB Output is correct
19 Correct 6 ms 60200 KB Output is correct
20 Correct 0 ms 60332 KB Output is correct
21 Correct 13 ms 60200 KB Output is correct
22 Correct 9 ms 60200 KB Output is correct
23 Correct 3 ms 60464 KB Output is correct
24 Correct 6 ms 60464 KB Output is correct
25 Correct 0 ms 60332 KB Output is correct
26 Correct 3 ms 60332 KB Output is correct
27 Correct 6 ms 60464 KB Output is correct
28 Correct 6 ms 61124 KB Output is correct
29 Correct 13 ms 63104 KB Output is correct
30 Correct 9 ms 60992 KB Output is correct
31 Correct 9 ms 61784 KB Output is correct
32 Correct 9 ms 61256 KB Output is correct
33 Correct 23 ms 65876 KB Output is correct
34 Correct 13 ms 63236 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 60200 KB Output is correct
2 Correct 6 ms 60200 KB Output is correct
3 Correct 3 ms 60200 KB Output is correct
4 Correct 6 ms 60200 KB Output is correct
5 Correct 6 ms 60200 KB Output is correct
6 Correct 3 ms 60200 KB Output is correct
7 Correct 13 ms 60200 KB Output is correct
8 Correct 9 ms 60200 KB Output is correct
9 Correct 9 ms 60200 KB Output is correct
10 Correct 0 ms 60200 KB Output is correct
11 Correct 0 ms 60200 KB Output is correct
12 Correct 6 ms 60200 KB Output is correct
13 Correct 6 ms 60200 KB Output is correct
14 Correct 3 ms 60464 KB Output is correct
15 Correct 6 ms 60332 KB Output is correct
16 Correct 3 ms 60200 KB Output is correct
17 Correct 6 ms 60332 KB Output is correct
18 Correct 3 ms 60200 KB Output is correct
19 Correct 9 ms 60200 KB Output is correct
20 Correct 6 ms 60332 KB Output is correct
21 Correct 6 ms 60200 KB Output is correct
22 Correct 6 ms 60200 KB Output is correct
23 Correct 3 ms 60464 KB Output is correct
24 Correct 13 ms 60464 KB Output is correct
25 Correct 3 ms 60332 KB Output is correct
26 Correct 3 ms 60332 KB Output is correct
27 Correct 3 ms 60464 KB Output is correct
28 Correct 9 ms 61124 KB Output is correct
29 Correct 9 ms 63104 KB Output is correct
30 Correct 3 ms 60992 KB Output is correct
31 Correct 6 ms 61784 KB Output is correct
32 Correct 6 ms 61256 KB Output is correct
33 Correct 29 ms 65876 KB Output is correct
34 Correct 23 ms 63236 KB Output is correct
35 Correct 16 ms 60728 KB Output is correct
36 Correct 6 ms 60332 KB Output is correct
37 Correct 16 ms 60728 KB Output is correct
38 Correct 23 ms 60860 KB Output is correct
39 Correct 13 ms 60464 KB Output is correct
40 Correct 23 ms 60464 KB Output is correct
41 Correct 16 ms 60596 KB Output is correct
42 Correct 9 ms 60544 KB Output is correct
43 Correct 13 ms 60544 KB Output is correct
44 Correct 13 ms 60472 KB Output is correct
45 Correct 163 ms 78680 KB Output is correct
46 Correct 103 ms 68780 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 60200 KB Output is correct
2 Correct 6 ms 60200 KB Output is correct
3 Correct 6 ms 60200 KB Output is correct
4 Correct 6 ms 60200 KB Output is correct
5 Correct 3 ms 60200 KB Output is correct
6 Correct 0 ms 60200 KB Output is correct
7 Correct 0 ms 60200 KB Output is correct
8 Correct 6 ms 60200 KB Output is correct
9 Correct 3 ms 60200 KB Output is correct
10 Correct 6 ms 60200 KB Output is correct
11 Correct 6 ms 60200 KB Output is correct
12 Correct 6 ms 60200 KB Output is correct
13 Correct 0 ms 60200 KB Output is correct
14 Correct 3 ms 60464 KB Output is correct
15 Correct 9 ms 60332 KB Output is correct
16 Correct 3 ms 60200 KB Output is correct
17 Correct 9 ms 60332 KB Output is correct
18 Correct 13 ms 60200 KB Output is correct
19 Correct 6 ms 60200 KB Output is correct
20 Correct 3 ms 60332 KB Output is correct
21 Correct 3 ms 60200 KB Output is correct
22 Correct 3 ms 60200 KB Output is correct
23 Correct 9 ms 60464 KB Output is correct
24 Correct 9 ms 60464 KB Output is correct
25 Correct 6 ms 60332 KB Output is correct
26 Correct 9 ms 60332 KB Output is correct
27 Correct 6 ms 60464 KB Output is correct
28 Correct 9 ms 61124 KB Output is correct
29 Correct 9 ms 63104 KB Output is correct
30 Correct 9 ms 60992 KB Output is correct
31 Correct 9 ms 61784 KB Output is correct
32 Correct 13 ms 61256 KB Output is correct
33 Correct 13 ms 65876 KB Output is correct
34 Correct 9 ms 63236 KB Output is correct
35 Correct 23 ms 60728 KB Output is correct
36 Correct 9 ms 60332 KB Output is correct
37 Correct 16 ms 60728 KB Output is correct
38 Correct 16 ms 60860 KB Output is correct
39 Correct 19 ms 60464 KB Output is correct
40 Correct 16 ms 60464 KB Output is correct
41 Correct 16 ms 60596 KB Output is correct
42 Correct 13 ms 60544 KB Output is correct
43 Correct 3 ms 60544 KB Output is correct
44 Correct 9 ms 60472 KB Output is correct
45 Correct 149 ms 78680 KB Output is correct
46 Correct 103 ms 68780 KB Output is correct
47 Correct 16 ms 61784 KB Output is correct
48 Correct 23 ms 60728 KB Output is correct
49 Correct 16 ms 60728 KB Output is correct
50 Correct 13 ms 60596 KB Output is correct
51 Correct 33 ms 62576 KB Output is correct
52 Correct 29 ms 62708 KB Output is correct
53 Correct 16 ms 60992 KB Output is correct
54 Correct 6 ms 60860 KB Output is correct
55 Correct 16 ms 61388 KB Output is correct
56 Correct 23 ms 62576 KB Output is correct
57 Correct 0 ms 60332 KB Output is correct
58 Correct 23 ms 63444 KB Output is correct
59 Correct 36 ms 63048 KB Output is correct
60 Correct 36 ms 63056 KB Output is correct
61 Correct 23 ms 62800 KB Output is correct
62 Correct 116 ms 73532 KB Output is correct
63 Correct 93 ms 65876 KB Output is correct
64 Correct 106 ms 65480 KB Output is correct
65 Execution timed out 1000 ms 86336 KB Execution timed out
66 Halted 0 ms 0 KB -