답안 #60517

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
60517	2018-07-24T09:34:56 Z	istlemin	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	10 / 100	6 ms	892 KB

skyscraper

#include<bits/stdc++.h>

using namespace std;

#define rep(i,a,b) for(int i = a; i<int(b);++i)
#define all(v) v.begin(),v.end()
#define sz(v) v.size()
#define trav(a,c) for(auto a: c)

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pii;

int main(){
	cin.sync_with_stdio(false);
    ll n,m;
    cin>>n>>m;

    vi b(m);
    vi p(m);


    vector<set<ll> > doges(n);
    vector<vi> e;

    rep(i,0,m) {
		cin>>b[i]>>p[i];
        doges[b[i]].insert(i);
	}

    priority_queue<pair<ll,ll>,vector<pii>,greater<pii> > q; //(jumps,doge);
    q.emplace(0,b[0]);

    vector<bool> seen(n);

    while(q.size()){
        ll pos,jumps;
        tie(jumps,pos) = q.top();
        q.pop();
        //cout<<pos<<" "<<jumps<<": "<<endl;

		if(seen[pos]) continue;
		seen[pos] = true;


        vector<bool> seenHere(n);

		trav(doge,doges[pos]){
			if(doge==1){
				cout<<jumps<<endl;
				return 0;
			}
			//rep(i,0,n)
			//	if((i-pos)%p[doge]==0&&!seen[i])
			//		q.emplace(jumps+abs(i-pos)/p[doge],i);
			ll pi = p[doge];
            rep(i,1,n/pi+1){
				//cout<<pos+pi*i<<endl;
				if(pos+pi*i<n) {
					if(seenHere[pos+pi*i]) break;
					seenHere[pos+pi*i] = true;
					q.emplace(jumps+i,pos+pi*i);
				}
				if(pos-pi*i>=0) {
					if(seenHere[pos-pi*i]) break;
					seenHere[pos-pi*i] = true;
					q.emplace(jumps+i,pos-pi*i);
				}
            }
		}
        /*rep(i,0,n){
            if((b[i]-b[doge])%p[doge]==0&&!seen[i])
				q.emplace(jumps+abs(b[i]-b[doge])/p[doge],i);
        }*/
    }

    cout<<-1<<endl;
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	248 KB	Output is correct
2	Correct	3 ms	484 KB	Output is correct
3	Correct	4 ms	484 KB	Output is correct
4	Correct	3 ms	484 KB	Output is correct
5	Correct	3 ms	484 KB	Output is correct
6	Correct	3 ms	484 KB	Output is correct
7	Correct	2 ms	660 KB	Output is correct

Subtask #2

0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	660 KB	Output is correct
2	Correct	3 ms	660 KB	Output is correct
3	Correct	3 ms	660 KB	Output is correct
4	Correct	3 ms	660 KB	Output is correct
5	Correct	3 ms	660 KB	Output is correct
6	Correct	4 ms	660 KB	Output is correct
7	Correct	3 ms	660 KB	Output is correct
8	Correct	4 ms	660 KB	Output is correct
9	Correct	3 ms	660 KB	Output is correct
10	Correct	1 ms	660 KB	Output is correct
11	Correct	4 ms	720 KB	Output is correct
12	Correct	4 ms	720 KB	Output is correct
13	Correct	5 ms	852 KB	Output is correct
14	Correct	4 ms	852 KB	Output is correct
15	Incorrect	4 ms	852 KB	Output isn't correct

Subtask #3

0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	852 KB	Output is correct
2	Correct	4 ms	852 KB	Output is correct
3	Correct	2 ms	852 KB	Output is correct
4	Correct	4 ms	852 KB	Output is correct
5	Correct	3 ms	852 KB	Output is correct
6	Correct	3 ms	852 KB	Output is correct
7	Correct	2 ms	852 KB	Output is correct
8	Correct	3 ms	852 KB	Output is correct
9	Correct	3 ms	852 KB	Output is correct
10	Correct	4 ms	852 KB	Output is correct
11	Correct	3 ms	876 KB	Output is correct
12	Correct	4 ms	876 KB	Output is correct
13	Correct	6 ms	892 KB	Output is correct
14	Correct	3 ms	892 KB	Output is correct
15	Incorrect	5 ms	892 KB	Output isn't correct
16	Halted	0 ms	0 KB	-

Subtask #4

0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	892 KB	Output is correct
2	Correct	2 ms	892 KB	Output is correct
3	Correct	3 ms	892 KB	Output is correct
4	Correct	2 ms	892 KB	Output is correct
5	Correct	3 ms	892 KB	Output is correct
6	Correct	3 ms	892 KB	Output is correct
7	Correct	3 ms	892 KB	Output is correct
8	Correct	3 ms	892 KB	Output is correct
9	Correct	2 ms	892 KB	Output is correct
10	Correct	3 ms	892 KB	Output is correct
11	Correct	3 ms	892 KB	Output is correct
12	Correct	4 ms	892 KB	Output is correct
13	Correct	5 ms	892 KB	Output is correct
14	Correct	4 ms	892 KB	Output is correct
15	Incorrect	5 ms	892 KB	Output isn't correct
16	Halted	0 ms	0 KB	-

Subtask #5

0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	892 KB	Output is correct
2	Correct	2 ms	892 KB	Output is correct
3	Correct	2 ms	892 KB	Output is correct
4	Correct	3 ms	892 KB	Output is correct
5	Correct	3 ms	892 KB	Output is correct
6	Correct	4 ms	892 KB	Output is correct
7	Correct	2 ms	892 KB	Output is correct
8	Correct	3 ms	892 KB	Output is correct
9	Correct	3 ms	892 KB	Output is correct
10	Correct	3 ms	892 KB	Output is correct
11	Correct	4 ms	892 KB	Output is correct
12	Correct	3 ms	892 KB	Output is correct
13	Correct	5 ms	892 KB	Output is correct
14	Correct	4 ms	892 KB	Output is correct
15	Incorrect	5 ms	892 KB	Output isn't correct
16	Halted	0 ms	0 KB	-