oj.uz

답안 #398431

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
398431 2021-05-04T09:12:09 Z tengiz05 Jakarta Skyscrapers (APIO15_skyscraper) C++17
57 / 100
 1000 ms 93300 KB 
#include <bits/stdc++.h>
using namespace std;
inline long long msb(long long val){return 63-__builtin_clzll(val);}
inline int msb(int val){return 31-__builtin_clz(val);}
//~ #define int long long
#define FASTIO ios_base::sync_with_stdio(false); cin.tie(NULL);
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define pii pair<int, int>
#define ff first
#define ss second
#define PI acos(-1)
#define ld long double
#define emplace_back push_back
template<class T> bool chmin(T& a, const T& b) {return a>b? a=b, true:false;}
template<class T> bool chmax(T& a, const T& b) {return a<b? a=b, true:false;}
const int mod = 1e9+7, N = 30000, M = 30000;
int n, m, k;
bitset<M> used[N];
int len[N];
vector<int> who_is_here[N];
void solve(int test_case){
	int i, j;
	cin >> n >> m;
	int start;
	for(i=0;i<m;i++){
		int pos;
		cin >> pos >> len[i];
		if(i){
			who_is_here[pos].pb(i);
		}else {
			start = pos;
		}
	}
	//~ priority_queue<tuple<int,int,int>,vector<tuple<int,int,int>>, greater<tuple<int,int,int>>> q;
	deque<array<int,3>> q;
	q.emplace_back({0,start,0});
	used[start][0] = 1;
	while(!q.empty()){
		auto [dist, pos, i] = q.front(); q.pop_front();
		if(i == 1){
			cout << dist << '\n';
			return;
		}
		while(who_is_here[pos].size()){
			auto x = who_is_here[pos].back();
			who_is_here[pos].pop_back();
			if(x == 1){
				cout << dist << '\n';
				return;
			}
			used[pos][x] = 1;
			q.push_front({dist,pos,x});
		}
		if(pos - len[i] >=0 && !used[pos-len[i]][i]){
			used[pos-len[i]][i] = 1;
			q.emplace_back({dist+1,pos-len[i],i});
		}
		if(pos + len[i] < n && !used[pos+len[i]][i]){
			used[pos+len[i]][i] = 1;
			q.emplace_back({dist+1,pos+len[i],i});
		}
	}
	cout << -1 << '\n';
	return;
}

signed main(){
	FASTIO;
//~ #define MULTITEST 1
#if MULTITEST
	int _T;
	cin >> _T;
	for(int T_CASE = 1; T_CASE <= _T; T_CASE++)
		solve(T_CASE);
#else
	solve(1);
#endif
	return 0;
}

Compilation message

skyscraper.cpp: In function 'void solve(int)':
skyscraper.cpp:23:9: warning: unused variable 'j' [-Wunused-variable]
   23 |  int i, j;
      |         ^
skyscraper.cpp:25:6: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |  int start;
      |      ^~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 2 ms 1228 KB Output is correct
11 Correct 2 ms 1228 KB Output is correct
12 Correct 1 ms 1356 KB Output is correct
13 Correct 2 ms 1356 KB Output is correct
14 Correct 2 ms 1356 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 1228 KB Output is correct
11 Correct 2 ms 1228 KB Output is correct
12 Correct 2 ms 1356 KB Output is correct
13 Correct 2 ms 1360 KB Output is correct
14 Correct 2 ms 1356 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 3 ms 3660 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 90 ms 8344 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 5 ms 6348 KB Output is correct
24 Correct 7 ms 7500 KB Output is correct
25 Correct 2 ms 2380 KB Output is correct
26 Correct 6 ms 7244 KB Output is correct
27 Correct 6 ms 7732 KB Output is correct
28 Correct 7 ms 8396 KB Output is correct
29 Correct 10 ms 8384 KB Output is correct
30 Correct 6 ms 8268 KB Output is correct
31 Correct 7 ms 8268 KB Output is correct
32 Correct 7 ms 8268 KB Output is correct
33 Correct 10 ms 8396 KB Output is correct
34 Correct 8 ms 8308 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 1228 KB Output is correct
11 Correct 2 ms 1228 KB Output is correct
12 Correct 2 ms 1356 KB Output is correct
13 Correct 2 ms 1356 KB Output is correct
14 Correct 2 ms 1356 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct
16 Correct 2 ms 972 KB Output is correct
17 Correct 3 ms 3660 KB Output is correct
18 Correct 1 ms 972 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 88 ms 8376 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 5 ms 6348 KB Output is correct
24 Correct 6 ms 7500 KB Output is correct
25 Correct 3 ms 2380 KB Output is correct
26 Correct 6 ms 7328 KB Output is correct
27 Correct 7 ms 7664 KB Output is correct
28 Correct 8 ms 8396 KB Output is correct
29 Correct 8 ms 8276 KB Output is correct
30 Correct 6 ms 8272 KB Output is correct
31 Correct 7 ms 8268 KB Output is correct
32 Correct 6 ms 8268 KB Output is correct
33 Correct 10 ms 8344 KB Output is correct
34 Correct 8 ms 8316 KB Output is correct
35 Correct 13 ms 6788 KB Output is correct
36 Correct 3 ms 3024 KB Output is correct
37 Correct 12 ms 8536 KB Output is correct
38 Correct 15 ms 8980 KB Output is correct
39 Correct 8 ms 1868 KB Output is correct
40 Correct 9 ms 4172 KB Output is correct
41 Correct 12 ms 8332 KB Output is correct
42 Correct 9 ms 7628 KB Output is correct
43 Correct 10 ms 8232 KB Output is correct
44 Correct 113 ms 9320 KB Output is correct
45 Correct 33 ms 8992 KB Output is correct
46 Correct 22 ms 9028 KB Output is correct

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 1228 KB Output is correct
11 Correct 2 ms 1228 KB Output is correct
12 Correct 1 ms 1356 KB Output is correct
13 Correct 2 ms 1356 KB Output is correct
14 Correct 2 ms 1356 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 3 ms 3660 KB Output is correct
18 Correct 2 ms 972 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 90 ms 8388 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 972 KB Output is correct
23 Correct 5 ms 6336 KB Output is correct
24 Correct 6 ms 7500 KB Output is correct
25 Correct 2 ms 2380 KB Output is correct
26 Correct 6 ms 7244 KB Output is correct
27 Correct 6 ms 7628 KB Output is correct
28 Correct 9 ms 8396 KB Output is correct
29 Correct 7 ms 8268 KB Output is correct
30 Correct 7 ms 8272 KB Output is correct
31 Correct 7 ms 8388 KB Output is correct
32 Correct 7 ms 8268 KB Output is correct
33 Correct 10 ms 8396 KB Output is correct
34 Correct 8 ms 8396 KB Output is correct
35 Correct 11 ms 6796 KB Output is correct
36 Correct 3 ms 3020 KB Output is correct
37 Correct 11 ms 8524 KB Output is correct
38 Correct 14 ms 8908 KB Output is correct
39 Correct 8 ms 1868 KB Output is correct
40 Correct 9 ms 4152 KB Output is correct
41 Correct 13 ms 8268 KB Output is correct
42 Correct 10 ms 7580 KB Output is correct
43 Correct 10 ms 8268 KB Output is correct
44 Correct 113 ms 9252 KB Output is correct
45 Correct 43 ms 9036 KB Output is correct
46 Correct 23 ms 9036 KB Output is correct
47 Correct 28 ms 33100 KB Output is correct
48 Correct 7 ms 1484 KB Output is correct
49 Correct 7 ms 1484 KB Output is correct
50 Correct 5 ms 1356 KB Output is correct
51 Correct 65 ms 86132 KB Output is correct
52 Correct 71 ms 93300 KB Output is correct
53 Correct 20 ms 18252 KB Output is correct
54 Correct 38 ms 61132 KB Output is correct
55 Correct 50 ms 77796 KB Output is correct
56 Execution timed out 1093 ms 21428 KB Time limit exceeded
57 Halted 0 ms 0 KB -