oj.uz

Submission #261036

# Submission time Handle Problem Language Result Execution time Memory
261036 2020-08-11T10:19:26 Z user202729 Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 114 ms 7272 KB 
// 4
// ...
#ifndef LOCAL
#define NDEBUG 1
#endif
#include<bits/stdc++.h>

int main(){
	std::ios::sync_with_stdio(0);std::cin.tie(0);
	int numBlock, numDog; std::cin>>numBlock>>numDog;
	std::vector<std::vector<int>> lengthsAt(numBlock);
	struct T{
		int home, power;
		bool operator==(T other) const{return std::tie(home, power)==std::tie(other.home, other.power);}
		bool operator<(T other) const{return std::tie(home, power)<std::tie(other.home, other.power);}
	};
	std::vector<T> data(numDog);
	for(auto& [home, power]: data){
		std::cin>>home>>power;
	}
	data.erase(std::remove_if(2+begin(data), end(data), [&](T it){return it==data[0] or it==data[1];}),
			data.end());
	std::sort(begin(data)+2, end(data));
	data.erase(std::unique(begin(data)+2, end(data)), end(data));
	numDog=(int)data.size();
	for(auto [home, power]: data){
		lengthsAt[home].push_back(power);
	}
	for(auto& it: lengthsAt){
		std::sort(begin(it), end(it));
		it.erase(std::unique(begin(it), end(it)), end(it));
	}

	struct EdgeCluster{int first, lastInclusive, power;};
	std::vector<std::vector<EdgeCluster>> add(numBlock);
	/*
	auto const indexBlock=[&](int block){return block;};
	auto const indexDog=[&](int dog){return dog+numBlock;};
	*/

	for(int dog=0; dog<numDog; ++dog){
		auto [home, power]=data[dog];
		for(int next=home-power; next>=0; next-=power){
			if(std::binary_search(begin(lengthsAt[next]), end(lengthsAt[next]), power) or next-power<0){
				add[home].push_back({next, home-power, power});
				break;
			}
		}
		for(int next=home+power; next<numBlock; next+=power){
			if(std::binary_search(begin(lengthsAt[next]), end(lengthsAt[next]), power) or next+power>=numBlock){
				add[home].push_back({home+power, next, power});
				break;
			}
		}
	}

	struct State{int node, distance;
		bool operator<(State other) const{return distance>other.distance;}
	};
	std::vector<int> distance(add.size(), INT_MAX);
	std::priority_queue<State> queue;
	queue.push({data[0].home, distance[data[0].home]=0});

	while(not queue.empty()){
		auto [node, curDistance]=queue.top(); queue.pop();
		if(curDistance!=distance[node]) continue;
		if(node==data[1].home){
			std::cout<<curDistance<<'\n';
			return 0;
		}
		for(auto [first, lastInclusive, power]: add[node]){
			if(first==node+power){
				for(int next=first, length=1; next<=lastInclusive; next+=power,++length){
					auto nextDistance=curDistance+length;
					if(nextDistance<distance[next]){
						queue.push({next, distance[next]=nextDistance});
					}
				}
			}else{
				assert(lastInclusive==node-power);
				for(int next=lastInclusive, length=1; next>=first; next-=power,++length){
					auto nextDistance=curDistance+length;
					if(nextDistance<distance[next]){
						queue.push({next, distance[next]=nextDistance});
					}
				}
			}
		}
	}
	std::cout<<"-1\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 288 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 416 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 2 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 2 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 2 ms 640 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 2 ms 640 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 4 ms 896 KB Output is correct
34 Correct 3 ms 896 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 640 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 2 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 1 ms 512 KB Output is correct
29 Correct 2 ms 640 KB Output is correct
30 Correct 1 ms 512 KB Output is correct
31 Correct 1 ms 512 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 4 ms 896 KB Output is correct
34 Correct 3 ms 896 KB Output is correct
35 Correct 12 ms 1152 KB Output is correct
36 Correct 2 ms 512 KB Output is correct
37 Correct 12 ms 1280 KB Output is correct
38 Correct 15 ms 1536 KB Output is correct
39 Correct 15 ms 1408 KB Output is correct
40 Correct 17 ms 1536 KB Output is correct
41 Correct 15 ms 1408 KB Output is correct
42 Correct 8 ms 640 KB Output is correct
43 Correct 7 ms 768 KB Output is correct
44 Correct 7 ms 768 KB Output is correct
45 Correct 14 ms 1792 KB Output is correct
46 Correct 13 ms 1664 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 2 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 2 ms 640 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 512 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 2 ms 512 KB Output is correct
25 Correct 2 ms 512 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 2 ms 512 KB Output is correct
29 Correct 2 ms 640 KB Output is correct
30 Correct 2 ms 512 KB Output is correct
31 Correct 2 ms 512 KB Output is correct
32 Correct 1 ms 512 KB Output is correct
33 Correct 5 ms 896 KB Output is correct
34 Correct 4 ms 896 KB Output is correct
35 Correct 16 ms 1152 KB Output is correct
36 Correct 3 ms 640 KB Output is correct
37 Correct 12 ms 1280 KB Output is correct
38 Correct 15 ms 1536 KB Output is correct
39 Correct 15 ms 1408 KB Output is correct
40 Correct 15 ms 1536 KB Output is correct
41 Correct 16 ms 1408 KB Output is correct
42 Correct 7 ms 640 KB Output is correct
43 Correct 6 ms 640 KB Output is correct
44 Correct 8 ms 768 KB Output is correct
45 Correct 14 ms 1664 KB Output is correct
46 Correct 13 ms 1664 KB Output is correct
47 Correct 26 ms 2932 KB Output is correct
48 Correct 14 ms 2560 KB Output is correct
49 Correct 13 ms 2688 KB Output is correct
50 Correct 10 ms 2560 KB Output is correct
51 Correct 26 ms 3964 KB Output is correct
52 Correct 26 ms 3964 KB Output is correct
53 Correct 16 ms 3072 KB Output is correct
54 Correct 3 ms 2048 KB Output is correct
55 Correct 3 ms 2176 KB Output is correct
56 Correct 16 ms 3968 KB Output is correct
57 Correct 6 ms 2432 KB Output is correct
58 Correct 10 ms 2304 KB Output is correct
59 Correct 11 ms 2560 KB Output is correct
60 Correct 12 ms 2688 KB Output is correct
61 Correct 11 ms 2740 KB Output is correct
62 Correct 18 ms 3840 KB Output is correct
63 Correct 39 ms 4216 KB Output is correct
64 Correct 41 ms 4208 KB Output is correct
65 Correct 50 ms 5256 KB Output is correct
66 Correct 114 ms 7272 KB Output is correct
67 Correct 71 ms 7144 KB Output is correct