oj.uz

Submission #44060

# Submission time Handle Problem Language Result Execution time Memory
44060 2018-03-29T13:17:57 Z zadrga Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 165028 KB 
#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF (1LL << 55)
#define MOD (1000 * 1000 * 1000 + 7)
#define maxn 30111
#define SQRT 150

typedef long long ll;
typedef long double ld;

vector<pair<pair<int, int>, int> > adj[maxn][SQRT + 10];
vector<int> doge[maxn];
ll d[maxn][SQRT + 10];

priority_queue<pair<int, pair<int, int> > > pq;

int main(){
	for(int i = 0; i < maxn; i++)
		for(int j = 0; j < SQRT; j++)
			d[i][j] = INF;


	int n, m, z, k;
	scanf("%d%d", &n, &m);
	for(int i = 0; i < m; i++){
		int b, p;
		scanf("%d%d", &b, &p);

		if(i == 0)
			z = b;
	
		if(i == 1)
			k = b;

		if(p < SQRT)
			adj[b][0].pb(mp(mp(b, p), 0));

		if(p >= SQRT)
			doge[b].pb(p);
	}

	if(m == 1){
		printf("-1\n");
		return 0;
	}

	d[z][0] = 0;
	pq.push(mp(0, mp(z, 0)));
	while(!pq.empty()){
		int x = pq.top().se.fi;
		int y = pq.top().se.se;
		int val = -pq.top().fi;
		pq.pop();

		if(val > d[x][y])
			continue;

		if(x == k)
			break;

		if(x + y < n){
			if(d[x + y][y] > d[x][y] + 1){
				d[x + y][y] = d[x][y] + 1;
				pq.push(mp(-d[x + y][y], mp(x + y, y)));
			}

			if(d[x + y][0] > d[x][y] + 1){
				d[x + y][0] = d[x][y] + 1;
				pq.push(mp(-d[x + y][0], mp(x + y, 0)));
			}
		}

		if(x - y >= 0){
			if(d[x - y][y] > d[x][y] + 1){
				d[x - y][y] = d[x][y] + 1;
				pq.push(mp(-d[x - y][y], mp(x - y, y)));
			}

			if(d[x - y][0] > d[x][y] + 1){
				d[x - y][0] = d[x][y] + 1;
				pq.push(mp(-d[x - y][0], mp(x - y, 0)));
			}
		}

		for(auto v : adj[x][y]){
			int a = v.fi.fi;
			int b = v.fi.se;
			int t = v.se;

			if(d[a][b] > d[x][y] + t){
				d[a][b] = d[x][y] + t;
				pq.push(mp(-d[a][b], mp(a, b)));
			}
		}

		if(y == 0){
			for(int v : doge[x]){
				int p = v;

				for(int j = 1; x + j * p < n; j++){
					int a = x + j * p;

					if(d[a][0] > d[x][y] + j){
						d[a][0] = d[x][y] + j;
						pq.push(mp(-d[a][0], mp(a, 0)));
					}
				}

				for(int j = 1; x - j * p >= 0; j++){
					int a = x - j * p;

					if(d[a][0] > d[x][y] + j){
						d[a][0] = d[x][y] + j;
						pq.push(mp(-d[a][0], mp(a, 0)));
					}
				}
			}
		}
	}

	if(d[k][0] == INF)
		d[k][0] = -1;

	printf("%lld\n", d[k][0]);	
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:30:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &b, &p);
   ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:64:3: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(x == k)
   ^~
skyscraper.cpp:54:12: warning: 'z' may be used uninitialized in this function [-Wmaybe-uninitialized]
  pq.push(mp(0, mp(z, 0)));
            ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 151928 KB Output is correct
2 Correct 120 ms 152168 KB Output is correct
3 Correct 116 ms 152168 KB Output is correct
4 Correct 116 ms 152300 KB Output is correct
5 Correct 116 ms 152300 KB Output is correct
6 Correct 114 ms 152300 KB Output is correct
7 Correct 116 ms 152432 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 152432 KB Output is correct
2 Correct 118 ms 152432 KB Output is correct
3 Correct 117 ms 152564 KB Output is correct
4 Correct 123 ms 152564 KB Output is correct
5 Correct 118 ms 152564 KB Output is correct
6 Correct 148 ms 152564 KB Output is correct
7 Correct 124 ms 152564 KB Output is correct
8 Correct 143 ms 152604 KB Output is correct
9 Correct 126 ms 152604 KB Output is correct
10 Correct 146 ms 152604 KB Output is correct
11 Correct 120 ms 152604 KB Output is correct
12 Correct 122 ms 152604 KB Output is correct
13 Correct 117 ms 152604 KB Output is correct
14 Correct 118 ms 152604 KB Output is correct
15 Correct 124 ms 152704 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 152704 KB Output is correct
2 Correct 119 ms 152704 KB Output is correct
3 Correct 122 ms 152704 KB Output is correct
4 Correct 118 ms 152716 KB Output is correct
5 Correct 120 ms 152716 KB Output is correct
6 Correct 116 ms 152752 KB Output is correct
7 Correct 118 ms 152752 KB Output is correct
8 Correct 118 ms 152752 KB Output is correct
9 Correct 122 ms 152752 KB Output is correct
10 Correct 118 ms 152768 KB Output is correct
11 Correct 116 ms 153068 KB Output is correct
12 Correct 116 ms 153068 KB Output is correct
13 Correct 118 ms 153068 KB Output is correct
14 Correct 117 ms 153068 KB Output is correct
15 Correct 118 ms 153068 KB Output is correct
16 Correct 115 ms 153068 KB Output is correct
17 Correct 116 ms 153068 KB Output is correct
18 Correct 115 ms 153068 KB Output is correct
19 Correct 116 ms 153068 KB Output is correct
20 Correct 123 ms 153068 KB Output is correct
21 Correct 116 ms 153068 KB Output is correct
22 Correct 122 ms 153068 KB Output is correct
23 Correct 120 ms 153068 KB Output is correct
24 Correct 136 ms 153068 KB Output is correct
25 Correct 124 ms 153068 KB Output is correct
26 Correct 123 ms 153096 KB Output is correct
27 Correct 122 ms 153096 KB Output is correct
28 Correct 120 ms 153096 KB Output is correct
29 Correct 128 ms 153096 KB Output is correct
30 Correct 121 ms 153108 KB Output is correct
31 Correct 128 ms 153108 KB Output is correct
32 Correct 124 ms 153108 KB Output is correct
33 Correct 135 ms 153108 KB Output is correct
34 Correct 130 ms 153184 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 153184 KB Output is correct
2 Correct 133 ms 153184 KB Output is correct
3 Correct 117 ms 153184 KB Output is correct
4 Correct 118 ms 153184 KB Output is correct
5 Correct 116 ms 153184 KB Output is correct
6 Correct 119 ms 153184 KB Output is correct
7 Correct 119 ms 153184 KB Output is correct
8 Correct 121 ms 153184 KB Output is correct
9 Correct 117 ms 153184 KB Output is correct
10 Correct 119 ms 153184 KB Output is correct
11 Correct 118 ms 153192 KB Output is correct
12 Correct 119 ms 153200 KB Output is correct
13 Correct 118 ms 153200 KB Output is correct
14 Correct 121 ms 153308 KB Output is correct
15 Correct 121 ms 153308 KB Output is correct
16 Correct 122 ms 153308 KB Output is correct
17 Correct 121 ms 153308 KB Output is correct
18 Correct 119 ms 153308 KB Output is correct
19 Correct 119 ms 153308 KB Output is correct
20 Correct 120 ms 153316 KB Output is correct
21 Correct 147 ms 153316 KB Output is correct
22 Correct 129 ms 153316 KB Output is correct
23 Correct 121 ms 153316 KB Output is correct
24 Correct 138 ms 153384 KB Output is correct
25 Correct 120 ms 153384 KB Output is correct
26 Correct 122 ms 153424 KB Output is correct
27 Correct 122 ms 153424 KB Output is correct
28 Correct 121 ms 153496 KB Output is correct
29 Correct 130 ms 153496 KB Output is correct
30 Correct 133 ms 153496 KB Output is correct
31 Correct 137 ms 153496 KB Output is correct
32 Correct 125 ms 153496 KB Output is correct
33 Correct 147 ms 153496 KB Output is correct
34 Correct 132 ms 153496 KB Output is correct
35 Correct 135 ms 153952 KB Output is correct
36 Correct 129 ms 153952 KB Output is correct
37 Correct 125 ms 154204 KB Output is correct
38 Correct 133 ms 154524 KB Output is correct
39 Correct 129 ms 154628 KB Output is correct
40 Correct 130 ms 154892 KB Output is correct
41 Correct 134 ms 155276 KB Output is correct
42 Correct 131 ms 155632 KB Output is correct
43 Correct 130 ms 155820 KB Output is correct
44 Correct 128 ms 156048 KB Output is correct
45 Correct 179 ms 156348 KB Output is correct
46 Correct 147 ms 156528 KB Output is correct

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 156528 KB Output is correct
2 Correct 119 ms 156528 KB Output is correct
3 Correct 120 ms 156528 KB Output is correct
4 Correct 120 ms 156528 KB Output is correct
5 Correct 117 ms 156528 KB Output is correct
6 Correct 120 ms 156528 KB Output is correct
7 Correct 116 ms 156528 KB Output is correct
8 Correct 118 ms 156528 KB Output is correct
9 Correct 119 ms 156528 KB Output is correct
10 Correct 122 ms 156528 KB Output is correct
11 Correct 117 ms 156528 KB Output is correct
12 Correct 121 ms 156528 KB Output is correct
13 Correct 118 ms 156528 KB Output is correct
14 Correct 122 ms 156528 KB Output is correct
15 Correct 119 ms 156528 KB Output is correct
16 Correct 121 ms 156528 KB Output is correct
17 Correct 118 ms 156528 KB Output is correct
18 Correct 117 ms 156528 KB Output is correct
19 Correct 115 ms 156528 KB Output is correct
20 Correct 119 ms 156528 KB Output is correct
21 Correct 119 ms 156528 KB Output is correct
22 Correct 119 ms 156528 KB Output is correct
23 Correct 120 ms 156528 KB Output is correct
24 Correct 119 ms 156528 KB Output is correct
25 Correct 122 ms 156528 KB Output is correct
26 Correct 120 ms 156528 KB Output is correct
27 Correct 119 ms 156528 KB Output is correct
28 Correct 130 ms 156528 KB Output is correct
29 Correct 167 ms 156528 KB Output is correct
30 Correct 123 ms 156528 KB Output is correct
31 Correct 124 ms 156528 KB Output is correct
32 Correct 128 ms 156528 KB Output is correct
33 Correct 138 ms 156528 KB Output is correct
34 Correct 132 ms 156528 KB Output is correct
35 Correct 126 ms 156852 KB Output is correct
36 Correct 117 ms 156852 KB Output is correct
37 Correct 123 ms 156984 KB Output is correct
38 Correct 129 ms 157388 KB Output is correct
39 Correct 141 ms 157512 KB Output is correct
40 Correct 136 ms 157860 KB Output is correct
41 Correct 130 ms 158192 KB Output is correct
42 Correct 141 ms 158528 KB Output is correct
43 Correct 128 ms 158720 KB Output is correct
44 Correct 128 ms 158956 KB Output is correct
45 Correct 181 ms 159232 KB Output is correct
46 Correct 150 ms 159424 KB Output is correct
47 Correct 134 ms 159956 KB Output is correct
48 Correct 123 ms 159956 KB Output is correct
49 Correct 124 ms 159980 KB Output is correct
50 Correct 123 ms 159988 KB Output is correct
51 Correct 142 ms 161088 KB Output is correct
52 Correct 146 ms 161596 KB Output is correct
53 Correct 131 ms 161596 KB Output is correct
54 Correct 123 ms 161596 KB Output is correct
55 Correct 125 ms 161596 KB Output is correct
56 Correct 146 ms 161812 KB Output is correct
57 Correct 122 ms 161812 KB Output is correct
58 Correct 138 ms 161812 KB Output is correct
59 Correct 137 ms 161904 KB Output is correct
60 Correct 138 ms 162096 KB Output is correct
61 Correct 135 ms 162292 KB Output is correct
62 Correct 183 ms 163220 KB Output is correct
63 Correct 169 ms 163584 KB Output is correct
64 Correct 177 ms 163704 KB Output is correct
65 Correct 417 ms 164660 KB Output is correct
66 Execution timed out 1088 ms 165028 KB Time limit exceeded
67 Halted 0 ms 0 KB -