oj.uz

Submission #205632

# Submission time Handle Problem Language Result Execution time Memory
205632 2020-02-29T10:54:15 Z kshitij_sodani Jakarta Skyscrapers (APIO15_skyscraper) C++17
10 / 100
 98 ms 112376 KB 
#include <iostream>
#include <bits/stdc++.h>
 
using namespace std;

#define mp make_pair
#define pb push_back

#define a first
#define b second
#define endl "\n"
 int dis[2020][2020];
 
 int b[2020];
	int p[2020];

vector<pair<int,int>> adj[2020][2020];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n,m;
	cin>>n>>m;
	
	//map<pair<int,int><int,int>,int> aa;
	
	for(int i=0;i<m;i++){
		cin>>b[i]>>p[i];
		for(int j=b[i]-p[i];j>=0;j=j-p[i]){

			adj[j+p[i]][p[i]].pb(mp(j,p[i]));
			adj[j+p[i]][p[i]].pb(mp(j,2010));
		}
		for(int j=b[i]+p[i];j<n;j=j+p[i]){
	
			adj[j-p[i]][p[i]].pb(mp(j,p[i]));
	
			adj[j-p[i]][p[i]].pb(mp(j,2010));
		}
	
		adj[b[i]][2010].pb(mp(b[i],p[i]));
	}

	
	memset(dis,-1,sizeof(dis));
	//dis[b[0]][2010]=0;
	dis[b[0]][p[0]]=0;
	deque<pair<int,int>> aaa;

	aaa.push_back(mp(b[0],p[0]));
	//aaa.push_back(mp(b[0],2010));
	while(!aaa.empty()){
		pair<int,int> x;

		 x=aaa.front();
		// cout<<x.a<<" "<<x.b<<" "<<dis[x.a][x.b]<<endl;
		aaa.pop_front();
		int co=1;
		if(x.b==2010){
			co=0;
		}
		for(auto nn:adj[x.a][x.b]){
			if(dis[nn.a][nn.b]==-1 or dis[nn.a][nn.b]>dis[x.a][x.b]+co){
				dis[nn.a][nn.b]=dis[x.a][x.b]+co;
				if(co==0){
					aaa.push_front(nn);
				}
				else{
					aaa.push_back(nn);
				}
			}
		}
	}
/*	if(b[0]==b[1]){
		cout<<0<<endl;
		return 0;
	}*/

	cout<<dis[b[1]][p[1]]<<endl;




	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 112120 KB Output is correct
2 Correct 76 ms 112120 KB Output is correct
3 Correct 77 ms 112248 KB Output is correct
4 Correct 78 ms 112176 KB Output is correct
5 Correct 77 ms 112120 KB Output is correct
6 Correct 76 ms 112168 KB Output is correct
7 Correct 84 ms 112124 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 112120 KB Output is correct
2 Correct 75 ms 112120 KB Output is correct
3 Correct 75 ms 112120 KB Output is correct
4 Correct 77 ms 112120 KB Output is correct
5 Correct 75 ms 112120 KB Output is correct
6 Correct 76 ms 112120 KB Output is correct
7 Correct 76 ms 112120 KB Output is correct
8 Correct 77 ms 112120 KB Output is correct
9 Correct 77 ms 112192 KB Output is correct
10 Correct 78 ms 112120 KB Output is correct
11 Incorrect 77 ms 112376 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 112120 KB Output is correct
2 Correct 81 ms 112120 KB Output is correct
3 Correct 76 ms 112120 KB Output is correct
4 Correct 81 ms 112252 KB Output is correct
5 Correct 78 ms 112120 KB Output is correct
6 Correct 75 ms 112120 KB Output is correct
7 Correct 78 ms 112120 KB Output is correct
8 Correct 76 ms 112120 KB Output is correct
9 Correct 77 ms 112120 KB Output is correct
10 Correct 76 ms 112120 KB Output is correct
11 Incorrect 78 ms 112376 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 112124 KB Output is correct
2 Correct 78 ms 112120 KB Output is correct
3 Correct 78 ms 112176 KB Output is correct
4 Correct 78 ms 112120 KB Output is correct
5 Correct 79 ms 112116 KB Output is correct
6 Correct 76 ms 112120 KB Output is correct
7 Correct 77 ms 112120 KB Output is correct
8 Correct 77 ms 112120 KB Output is correct
9 Correct 78 ms 112120 KB Output is correct
10 Correct 80 ms 112248 KB Output is correct
11 Incorrect 79 ms 112376 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 112120 KB Output is correct
2 Correct 76 ms 112120 KB Output is correct
3 Correct 76 ms 112124 KB Output is correct
4 Correct 81 ms 112104 KB Output is correct
5 Correct 77 ms 112120 KB Output is correct
6 Correct 76 ms 112120 KB Output is correct
7 Correct 76 ms 112120 KB Output is correct
8 Correct 77 ms 112120 KB Output is correct
9 Correct 81 ms 112276 KB Output is correct
10 Correct 79 ms 112120 KB Output is correct
11 Incorrect 79 ms 112376 KB Output isn't correct
12 Halted 0 ms 0 KB -