oj.uz

Submission #774501

# Submission time Handle Problem Language Result Execution time Memory
774501 2023-07-05T18:58:35 Z Charizard2021 Jakarta Skyscrapers (APIO15_skyscraper) C++17
36 / 100
 302 ms 262144 KB 
#include<bits/stdc++.h>
using namespace std;
#define IOS ios::sync_with_stdio(false);; cin.tie(NULL)
void selfMax(long long& a, long long b){
    a = max(a, b);
}
void selfMin(long long& a, long long b){
    a = min(a, b);
}
template<typename T> istream& operator>>(istream& in, vector<T>& a) {for(auto &x : a) in >> x; return in;};
template<typename T1, typename T2> istream& operator>>(istream& in, pair<T1, T2>& x) {return in >> x.first >> x.second;}

template<typename T1, typename T2> ostream& operator<<(ostream& out, const pair<T1, T2>& x) {return out << x.first << ' ' << x.second;}
template<typename T> ostream& operator<<(ostream& out, vector<T>& a) {for(auto &x : a) out << x << ' '; return out;};
template<typename T> ostream& operator<<(ostream& out, vector<vector<T> >& a) {for(auto &x : a) out << x << '\n'; return out;};
template<typename T1, typename T2> ostream& operator<<(ostream& out, vector<pair<T1, T2> >& a) {for(auto &x : a) out << x << '\n'; return out;};

/*

Use DSU dsu(N);

*/
struct DSU {
	vector<long long> e;
	DSU(long long N) { e = vector<long long>(N, -1); }

	// get representive component (uses path compression)
	long long get(long long x) { return e[x] < 0 ? x : e[x] = get(e[x]); }

	bool same_set(long long a, long long b) { return get(a) == get(b); }

	long long size(long long x) { return -e[get(x)]; }

	bool unite(long long x, long long y) {  // union by size
		x = get(x), y = get(y);
		if (x == y) return false;
		if (e[x] > e[y]) swap(x, y);
		e[x] += e[y]; e[y] = x;
		return true;
	}
};
/*

Run with Bit<long long> BIT

*/
template <class T> class BIT {
    private:
        long long size;
        vector<T> bit;
        vector<T> arr;
    public:
        BIT(long long size) : size(size), bit(size + 1), arr(size) {}
        void set(long long ind, long long val) { add(ind, val - arr[ind]); }
        void add(long long ind, long long val) {
            arr[ind] += val;
            ind++;
            for (; ind <= size; ind += ind & -ind) { bit[ind] += val; }
        }
        T pref_sum(long long ind) {
            ind++;
            T total = 0;
            for (; ind > 0; ind -= ind & -ind) { total += bit[ind]; }
            return total;
        }
};
/*

Change Comb for specific Seg tree probs, but run with Seg<long long> Seg;

*/
template<class T> struct Seg {
	const T ID = 1e18; T comb(T a, T b) { return min(a,b); }
	long long n; vector<T> seg;
	void init(long long _n) { n = _n; seg.assign(2*n,ID); }
	void pull(long long p) { seg[p] = comb(seg[2*p],seg[2*p+1]); }
	void upd(long long p, T val) {
		seg[p += n] = val; for (p /= 2; p; p /= 2) pull(p); }
	T query(long long l, long long r) {
		T ra = ID, rb = ID;
		for (l += n, r += n+1; l < r; l /= 2, r /= 2) {
			if (l&1) ra = comb(ra,seg[l++]);
			if (r&1) rb = comb(seg[--r],rb);
		}
		return comb(ra,rb);
	}
};
int main(){
    long long n, m;
    cin >> n >> m;
    vector<pair<long long, long long> > dogs(m);
    for(long long i = 0; i < m; i++){
        cin >> dogs[i];
    }
    map<pair<long long, long long>, long long> mp;
    for(long long i = 0; i < m; i++){
        mp[dogs[i]]++;
    }
    vector<pair<long long,long long> > adj[n];
    for(long long i = 0; i < m; i++){
        if(0 <= dogs[i].first + dogs[i].second && dogs[i].first + dogs[i].second < n){
            adj[dogs[i].first].push_back(make_pair(dogs[i].second + dogs[i].first, 1));
            long long k = 2;
            while(0 <= dogs[i].first + dogs[i].second * k && dogs[i].first + dogs[i].second * k < n && mp.count(make_pair(dogs[i].first + dogs[i].second * k, dogs[i].second)) == 0){
                adj[dogs[i].first].push_back(make_pair(dogs[i].first + dogs[i].second * k, k));
                k++;
            }
            if(0 <= dogs[i].first + dogs[i].second * k && dogs[i].first + dogs[i].second * k < n){
                adj[dogs[i].first].push_back(make_pair(dogs[i].first + dogs[i].second * k, k));
            }
        }
        if(0 <= dogs[i].first - dogs[i].second && dogs[i].first - dogs[i].second < n){
            adj[dogs[i].first].push_back(make_pair(dogs[i].first - dogs[i].second, 1));
            long long k = 2;
            while(0 <= dogs[i].first - dogs[i].second * k && dogs[i].first - dogs[i].second * k < n && mp.count(make_pair(dogs[i].first - dogs[i].second * k, dogs[i].second)) == 0){
                adj[dogs[i].first].push_back(make_pair(dogs[i].first - dogs[i].second * k, k));
                k++;
            }
            if(0 <= dogs[i].first - dogs[i].second * k && dogs[i].first - dogs[i].second * k < n){
                adj[dogs[i].first].push_back(make_pair(dogs[i].first - dogs[i].second * k, k));
            }
        }
    }
    priority_queue<pair<long long, long long> > pq;
    vector<long long> distances(n, 1e18);
    if(!(0 <= dogs[0].first && dogs[0].first < n)){
        cout << -1 << "\n";
        return 0;
    }
    if(!(0 <= dogs[1].first && dogs[1].first < n)){
        cout << -1 << "\n";
        return 0;
    }
    distances[dogs[0].first] = 0;
    pq.push(make_pair(0, dogs[0].first));
    while(!pq.empty()){
        pair<long long, long long> x2 = pq.top();
        pq.pop();
        if(distances[x2.second] != -x2.first){
            continue;
        }
        long long u = x2.second;
        for(pair<long long, long long> x : adj[u]){
            long long v = x.first;
            if(distances[v] > distances[u] + x.second){
                distances[v] = distances[u] + x.second;
                pq.push(make_pair(-distances[v], v));
            }
        }
    }
    if(distances[dogs[1].first] == (long long)1e18){
        cout << -1 << "\n";
    }
    else{
        cout << distances[dogs[1].first] << "\n";
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 296 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 5 ms 4548 KB Output is correct
13 Correct 1 ms 568 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 1 ms 564 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 5 ms 4536 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 3 ms 852 KB Output is correct
18 Correct 2 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 568 KB Output is correct
21 Correct 1 ms 436 KB Output is correct
22 Correct 2 ms 428 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 3 ms 724 KB Output is correct
25 Correct 2 ms 724 KB Output is correct
26 Correct 99 ms 66296 KB Output is correct
27 Correct 102 ms 66284 KB Output is correct
28 Correct 4 ms 952 KB Output is correct
29 Correct 4 ms 1876 KB Output is correct
30 Correct 2 ms 812 KB Output is correct
31 Correct 3 ms 1236 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 5 ms 3156 KB Output is correct
34 Correct 5 ms 3280 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 5 ms 4548 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 3 ms 852 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 1 ms 440 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 3 ms 724 KB Output is correct
25 Correct 3 ms 724 KB Output is correct
26 Correct 99 ms 66280 KB Output is correct
27 Correct 107 ms 66268 KB Output is correct
28 Correct 3 ms 896 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 1 ms 852 KB Output is correct
31 Correct 2 ms 1196 KB Output is correct
32 Correct 2 ms 980 KB Output is correct
33 Correct 5 ms 3156 KB Output is correct
34 Correct 5 ms 3280 KB Output is correct
35 Correct 26 ms 4684 KB Output is correct
36 Correct 5 ms 1108 KB Output is correct
37 Correct 34 ms 6516 KB Output is correct
38 Correct 40 ms 6728 KB Output is correct
39 Correct 38 ms 6716 KB Output is correct
40 Correct 38 ms 6704 KB Output is correct
41 Correct 38 ms 6608 KB Output is correct
42 Runtime error 302 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 304 KB Output is correct
11 Correct 2 ms 468 KB Output is correct
12 Correct 6 ms 4548 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 1 ms 432 KB Output is correct
17 Correct 3 ms 852 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 1 ms 432 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 468 KB Output is correct
23 Correct 2 ms 468 KB Output is correct
24 Correct 3 ms 724 KB Output is correct
25 Correct 2 ms 724 KB Output is correct
26 Correct 101 ms 66268 KB Output is correct
27 Correct 101 ms 66308 KB Output is correct
28 Correct 3 ms 980 KB Output is correct
29 Correct 3 ms 1876 KB Output is correct
30 Correct 2 ms 852 KB Output is correct
31 Correct 2 ms 1236 KB Output is correct
32 Correct 2 ms 1068 KB Output is correct
33 Correct 5 ms 3156 KB Output is correct
34 Correct 5 ms 3280 KB Output is correct
35 Correct 26 ms 4756 KB Output is correct
36 Correct 4 ms 1080 KB Output is correct
37 Correct 33 ms 6524 KB Output is correct
38 Correct 39 ms 6720 KB Output is correct
39 Correct 39 ms 6772 KB Output is correct
40 Correct 38 ms 6716 KB Output is correct
41 Correct 37 ms 6576 KB Output is correct
42 Runtime error 268 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -