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Submission #41509

# Submission time Handle Problem Language Result Execution time Memory
41509 2018-02-17T15:30:48 Z fest Jakarta Skyscrapers (APIO15_skyscraper) C++14
36 / 100
 1000 ms 10324 KB 
// fest
#include <bits/stdc++.h>	

#define pb push_back
#define F first
#define S second
#define y1 dasdasfasfas
#define x1 wqdadfasfasfas
#define All(c) c.begin(), c.end()
#define SZ(A) (int((A).size()))
#define umap unordered_map
#define FILENAME ""
#define __ fflush(stdout)

typedef long long ll;
typedef long double ld;    

using namespace std;

void FREOPEN() {
	#ifdef COMP
		freopen(".in", "r", stdin);
		freopen("1.out", "w", stdout);
	#else
		freopen(FILENAME".in", "r", stdin);
		freopen(FILENAME".out", "w", stdout);
	#endif
}                           

inline double Time() {return (clock() * 1.0) / CLOCKS_PER_SEC; }             

const int N = 30500, inf = 1e9 * 2, MOD = (int)1e9 + 7;

char CH[N];

const ll INF = 1e18;

const int dx[] = {1, -1, 0, 0, -1, 1, -1, 1};
const int dy[] = {0, 0, 1, -1, -1, 1, 1, -1};

int dp[N];

vector<int> have[N];

umap<int, bool> was[N];

int main() {
  
	int n, m;
	scanf("%d %d", &n, &m);
	int start = 0, finish = 0;
	for (int i = 0; i < m; i++) {
		int b, p;
		scanf("%d %d", &b, &p);
		have[b].pb(p);
		was[b][p] = 1;
		if (i == 0) start = b;
		if (i == 1) finish = b;
	}
	for (int i = 0; i < n; i++) sort(All(have[i]));
	for (int i = 0; i < n; i++) dp[i] = inf;
	dp[start] = 0;
	set<pair<int, int> > s;
	s.insert({0, start});
	while (!s.empty()) {
		int v = s.begin() -> S;
		s.erase(s.begin());
		for (auto p : have[v]) {
			for (int mul = 1; v + mul * p < n; mul++) {
				int u = v + mul * p;
				if (dp[u] > dp[v] + mul) {
					s.erase({dp[u], u});
					dp[u] = dp[v] + mul;
					s.insert({dp[u], u});
				}
				if (was[u][p]) break;
			}
			for (int mul = 1; v - mul * p >= 0; mul++) {
				int u = v - mul * p;
				if (dp[u] > dp[v] + mul) {
					s.erase({dp[u], u});
					dp[u] = dp[v] + mul;
					s.insert({dp[u], u});
				}
        if (was[u][p]) break;
			} 	
		}
	}
	if (dp[finish] == inf) dp[finish] = -1;
	cout << dp[finish];
	return 0;	
}

Compilation message

skyscraper.cpp: In function 'void FREOPEN()':
skyscraper.cpp:25:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".in", "r", stdin);
                                     ^
skyscraper.cpp:26:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen(FILENAME".out", "w", stdout);
                                       ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:50:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
                        ^
skyscraper.cpp:54:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &b, &p);
                         ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2684 KB Output is correct
2 Correct 4 ms 2784 KB Output is correct
3 Correct 3 ms 2784 KB Output is correct
4 Correct 4 ms 2860 KB Output is correct
5 Correct 3 ms 2904 KB Output is correct
6 Correct 4 ms 3000 KB Output is correct
7 Correct 3 ms 3000 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3012 KB Output is correct
2 Correct 4 ms 3012 KB Output is correct
3 Correct 3 ms 3012 KB Output is correct
4 Correct 3 ms 3012 KB Output is correct
5 Correct 4 ms 3012 KB Output is correct
6 Correct 4 ms 3012 KB Output is correct
7 Correct 3 ms 3012 KB Output is correct
8 Correct 3 ms 3012 KB Output is correct
9 Correct 4 ms 3012 KB Output is correct
10 Correct 5 ms 3048 KB Output is correct
11 Correct 5 ms 3176 KB Output is correct
12 Correct 7 ms 3176 KB Output is correct
13 Correct 4 ms 3176 KB Output is correct
14 Correct 5 ms 3176 KB Output is correct
15 Correct 5 ms 3176 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 3176 KB Output is correct
2 Correct 3 ms 3176 KB Output is correct
3 Correct 4 ms 3176 KB Output is correct
4 Correct 3 ms 3176 KB Output is correct
5 Correct 3 ms 3176 KB Output is correct
6 Correct 3 ms 3176 KB Output is correct
7 Correct 4 ms 3176 KB Output is correct
8 Correct 4 ms 3176 KB Output is correct
9 Correct 3 ms 3176 KB Output is correct
10 Correct 5 ms 3176 KB Output is correct
11 Correct 5 ms 3180 KB Output is correct
12 Correct 7 ms 3180 KB Output is correct
13 Correct 4 ms 3180 KB Output is correct
14 Correct 5 ms 3180 KB Output is correct
15 Correct 5 ms 3180 KB Output is correct
16 Correct 4 ms 3180 KB Output is correct
17 Correct 7 ms 3568 KB Output is correct
18 Correct 5 ms 3568 KB Output is correct
19 Correct 3 ms 3568 KB Output is correct
20 Correct 5 ms 3568 KB Output is correct
21 Correct 4 ms 3568 KB Output is correct
22 Correct 4 ms 3568 KB Output is correct
23 Correct 6 ms 3568 KB Output is correct
24 Correct 8 ms 3568 KB Output is correct
25 Correct 6 ms 3568 KB Output is correct
26 Correct 88 ms 3568 KB Output is correct
27 Correct 80 ms 3568 KB Output is correct
28 Correct 9 ms 4076 KB Output is correct
29 Correct 22 ms 5740 KB Output is correct
30 Correct 8 ms 5740 KB Output is correct
31 Correct 14 ms 5740 KB Output is correct
32 Correct 10 ms 5740 KB Output is correct
33 Correct 41 ms 8300 KB Output is correct
34 Correct 45 ms 8300 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8300 KB Output is correct
2 Correct 3 ms 8300 KB Output is correct
3 Correct 3 ms 8300 KB Output is correct
4 Correct 3 ms 8300 KB Output is correct
5 Correct 3 ms 8300 KB Output is correct
6 Correct 3 ms 8300 KB Output is correct
7 Correct 4 ms 8300 KB Output is correct
8 Correct 3 ms 8300 KB Output is correct
9 Correct 3 ms 8300 KB Output is correct
10 Correct 4 ms 8300 KB Output is correct
11 Correct 5 ms 8300 KB Output is correct
12 Correct 7 ms 8300 KB Output is correct
13 Correct 4 ms 8300 KB Output is correct
14 Correct 5 ms 8300 KB Output is correct
15 Correct 9 ms 8300 KB Output is correct
16 Correct 4 ms 8300 KB Output is correct
17 Correct 8 ms 8300 KB Output is correct
18 Correct 4 ms 8300 KB Output is correct
19 Correct 4 ms 8300 KB Output is correct
20 Correct 4 ms 8300 KB Output is correct
21 Correct 4 ms 8300 KB Output is correct
22 Correct 4 ms 8300 KB Output is correct
23 Correct 6 ms 8300 KB Output is correct
24 Correct 8 ms 8300 KB Output is correct
25 Correct 7 ms 8300 KB Output is correct
26 Correct 79 ms 8300 KB Output is correct
27 Correct 71 ms 8300 KB Output is correct
28 Correct 9 ms 8300 KB Output is correct
29 Correct 20 ms 8300 KB Output is correct
30 Correct 8 ms 8300 KB Output is correct
31 Correct 12 ms 8300 KB Output is correct
32 Correct 11 ms 8300 KB Output is correct
33 Correct 38 ms 8300 KB Output is correct
34 Correct 40 ms 8312 KB Output is correct
35 Correct 36 ms 8312 KB Output is correct
36 Correct 9 ms 8312 KB Output is correct
37 Correct 56 ms 10324 KB Output is correct
38 Correct 60 ms 10324 KB Output is correct
39 Correct 62 ms 10324 KB Output is correct
40 Correct 55 ms 10324 KB Output is correct
41 Correct 58 ms 10324 KB Output is correct
42 Execution timed out 1060 ms 10324 KB Time limit exceeded
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 10324 KB Output is correct
2 Correct 4 ms 10324 KB Output is correct
3 Correct 3 ms 10324 KB Output is correct
4 Correct 3 ms 10324 KB Output is correct
5 Correct 3 ms 10324 KB Output is correct
6 Correct 3 ms 10324 KB Output is correct
7 Correct 3 ms 10324 KB Output is correct
8 Correct 3 ms 10324 KB Output is correct
9 Correct 3 ms 10324 KB Output is correct
10 Correct 4 ms 10324 KB Output is correct
11 Correct 6 ms 10324 KB Output is correct
12 Correct 7 ms 10324 KB Output is correct
13 Correct 4 ms 10324 KB Output is correct
14 Correct 5 ms 10324 KB Output is correct
15 Correct 7 ms 10324 KB Output is correct
16 Correct 4 ms 10324 KB Output is correct
17 Correct 10 ms 10324 KB Output is correct
18 Correct 5 ms 10324 KB Output is correct
19 Correct 4 ms 10324 KB Output is correct
20 Correct 5 ms 10324 KB Output is correct
21 Correct 4 ms 10324 KB Output is correct
22 Correct 4 ms 10324 KB Output is correct
23 Correct 7 ms 10324 KB Output is correct
24 Correct 9 ms 10324 KB Output is correct
25 Correct 7 ms 10324 KB Output is correct
26 Correct 78 ms 10324 KB Output is correct
27 Correct 75 ms 10324 KB Output is correct
28 Correct 10 ms 10324 KB Output is correct
29 Correct 20 ms 10324 KB Output is correct
30 Correct 8 ms 10324 KB Output is correct
31 Correct 12 ms 10324 KB Output is correct
32 Correct 11 ms 10324 KB Output is correct
33 Correct 46 ms 10324 KB Output is correct
34 Correct 52 ms 10324 KB Output is correct
35 Correct 38 ms 10324 KB Output is correct
36 Correct 10 ms 10324 KB Output is correct
37 Correct 56 ms 10324 KB Output is correct
38 Correct 79 ms 10324 KB Output is correct
39 Correct 110 ms 10324 KB Output is correct
40 Correct 65 ms 10324 KB Output is correct
41 Correct 76 ms 10324 KB Output is correct
42 Execution timed out 1064 ms 10324 KB Time limit exceeded
43 Halted 0 ms 0 KB -