oj.uz

Submission #1106927

# Submission time Handle Problem Language Result Execution time Memory
1106927 2024-10-31T09:17:20 Z matu Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
 601 ms 3492 KB 
#include <bits/stdc++.h>
// #include <tr2/dynamic_bitset>
 
using namespace std;
// using namespace tr2;
#pragma GCC optimize("O3,unroll-loops,Ofast")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
const long double eps = 1e-9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int randgen(int left, int right) {
    return uniform_int_distribution<int>(left, right)(rng);
}
long long randgenll(long long left, long long right) {
    return uniform_int_distribution<long long>(left, right)(rng);
}
 
typedef long long ll;
typedef long double ld;
const int mod = 1e9 + 7;
struct Mint
{
    int val;
    Mint(int x = 0)
    {
        val = x % mod;
    }
    Mint(long long x)
    {
        val = x % mod;
    }
    Mint operator+(Mint oth)
    {
        return val + oth.val;
    }
    Mint operator*(Mint oth)
    {
        return 1LL * val * oth.val;
    }
    Mint operator-(Mint oth)
    {
        return val - oth.val + mod;
    }
    Mint fp(Mint a, long long n){
        Mint p = 1;
        while(n){
            if(n & 1){
                p = p * a;
            }
            a = a * a;
            n /= 2;
        }
        return p;
    }
    Mint operator/(Mint oth){
        Mint invers = fp(oth, mod - 2);
        return 1LL * val * invers.val;
    }
    friend ostream& operator << (ostream& os, const Mint& lol){
        os << lol.val;
        return os;
    }
};
 
struct AINT{
    vector<pair<ll,Mint>> aint;
    vector<pair<ll,Mint>> lazy;
    pair<ll,Mint> b;
    AINT(int n){
        b = {1e18,Mint(0)};
        aint.assign(n * 4 + 1,make_pair(1e18,Mint(0)));
        lazy.assign(n * 4 + 1, make_pair(1e18, Mint(0)));
    }
    void update(int v, int tl, int tr, int l, int r, pair<ll,Mint> val){
        if(lazy[v].first != 1e18){
            if(aint[v].first == lazy[v].first){
                aint[v].second = aint[v].second + lazy[v].second;
            }else if(aint[v].first > lazy[v].first) aint[v] = lazy[v];
 
            if(tl != tr){
                if(lazy[v * 2].first == lazy[v].first){
                    lazy[v * 2].second = lazy[v *  2].second + lazy[v].second;
                }else if(lazy[v * 2].first > lazy[v].first) lazy[v * 2] = lazy[v];
                
 
                if(lazy[v * 2 + 1].first == lazy[v].first){
                    lazy[v * 2 + 1].second = lazy[v * 2 + 1].second + lazy[v].second;
                }else if(lazy[v * 2 + 1].first > lazy[v].first){
                    lazy[v * 2 + 1] = lazy[v];
                }
            }
            lazy[v] = b;
        }
        if(l <= tl && r >= tr){
            if(aint[v].first == val.first){
                aint[v].second = aint[v].second + val.second;
            }else if(aint[v].first > val.first){
                    aint[v] = val;
            }
 
            if(tl != tr){
                if(lazy[v * 2].first == val.first){
                    lazy[v * 2].second = lazy[v *  2].second + val.second;
                }else if(lazy[v * 2].first > val.first){
                    lazy[v * 2] = val;
                }
                
 
                if(lazy[v * 2 + 1].first == val.first){
                    lazy[v * 2 + 1].second = lazy[v * 2 + 1].second + val.second;
                }else if(lazy[v * 2 + 1].first > val.first){
                    lazy[v * 2 + 1] = val;
                }
            }
            return;
        }
        if(l > tr || r < tl) return;
        int tm = (tl + tr) / 2;
        update(v * 2, tl, tm, l,r , val);
        update(v * 2 + 1, tm + 1, tr, l, r, val);
        
        if(aint[v * 2].first == aint[v * 2 + 1].first){
            aint[v] = aint[v * 2];
            aint[v].second = aint[v].second + aint[v * 2 + 1].second;
        }else{
            if(aint[v * 2].first < aint[v * 2 + 1].first) aint[v] = aint[v * 2];
            else aint[v] = aint[v * 2 + 1];
        }
 
 
    }
    pair<ll,Mint> query(int v, int tl, int tr, int l, int r){
        if(lazy[v].first != 1e18){
            if(aint[v].first == lazy[v].first){
                aint[v].second = aint[v].second + lazy[v].second;
            }else if(aint[v].first > lazy[v].first) aint[v] = lazy[v];
 
            if(tl != tr){
                if(lazy[v * 2].first == lazy[v].first){
                    lazy[v * 2].second = lazy[v *  2].second + lazy[v].second;
                }else if(lazy[v * 2].first > lazy[v].first) lazy[v * 2] = lazy[v];
                
 
                if(lazy[v * 2 + 1].first == lazy[v].first){
                    lazy[v * 2 + 1].second = lazy[v * 2 + 1].second + lazy[v].second;
                }else if(lazy[v * 2 + 1].first > lazy[v].first){
                    lazy[v * 2 + 1] = lazy[v];
                }
            }
            lazy[v] = b;
        }
        if(l <= tl && r >= tr) return aint[v];
        if(l > tr || r < tl) return make_pair(1e18,Mint(0));
        int tm = (tl + tr) / 2;
        pair<ll,Mint> p1 = query(v * 2, tl ,tm, l, r);
        pair<ll,Mint> p2 = query(v * 2 + 1, tm + 1, tr, l,r);
        if(p1.first == p2.first){
            p1.second = p1.second + p2.second;
            return p1;
        }else if(p1.first < p2.first) return p1;
        return p2;
 
        // int tm = (tl + tr) / 2;
        // if(l <= tl && r >= tr) return aint[v];
        // if(l > tr || r < tl) return 0;
        // return max(query(v * 2, tl, tm,l,r), query(v * 2 + 1, tm + 1, tr, l,r));
        
    }
};
struct AIB{
    vector<int> aib;
    AIB(int n){
        aib.assign(n + 1,0);
    
    }
    void update(int pos, int val){
        for(; pos < aib.size(); pos += (pos & -pos)){
            aib[pos] += val;
        }
    }
    int query(int pos){
        int pl = 0;
   
        for(; pos > 0; pos -= (pos & -pos)) pl += aib[pos];
        return pl;
    }
};
 
int red = 0;
int ______________________________________________________________________________________________________________________________________________;
 
 
void solve(){
    int n, m;
    cin >> n >> m;
    vector<ll> dp(n + 1,1e18);
    queue<int> q;
    
    
    vector<vector<int>> lol(n + 1);
    int rot = 0, p = 0;
    for(int i = 1; i <= m; i++){
        int pos, c;
        cin >> pos >> c;
        lol[pos].push_back(c);
        if(i == 1){
            dp[pos] = 0;
            q.push(pos);
        }else if(i == 2){
            rot = pos;
            p = c;
        }
    }
    for(int i = 0; i < n; i++){
        if(lol.size()){
            set<int> s(lol[i].begin(),lol[i].end());
            lol[i].assign(s.begin(),s.end());
            
        }
    }
    while(q.size()){
        int nod = q.front();
        q.pop();
        for(auto i : lol[nod]){
            int cnt = 0;
            for(int j = nod; j < n; j += i){
                if(dp[j] > dp[nod] + cnt){
                    dp[j] = dp[nod] + cnt;
                    q.push(j);
                }
                cnt++;
            }
            cnt = 0;
            for(int j = nod; j >= 0; j -= i){
                if(dp[j] > dp[nod] + cnt){
                    dp[j] = dp[nod] + cnt;
                    q.push(j);
                }
                cnt++;
            }
        }
    }
    if(dp[rot] == 1e18) cout << -1;
    else cout << dp[rot];
    return;
   
}   
int32_t main(){
    cin.tie(0)->sync_with_stdio(0);
    int t = 1; 
    if(red) cin >> t;
   
    while(t--){
        solve();
    }
 
 
}
 
 
/*
 
2 2 2 2 4
1 3 5
 
 
1 30
1 40
120 2 
2 430
100 3 
3 30
100 4 
4 490
100 5 
5 440
40 6 
6 290
50 7 
7 190
290 8 
8 430
50 9 
9 60
190 10 
10 490
*/

Compilation message

skyscraper.cpp: In member function 'void AIB::update(int, int)':
skyscraper.cpp:176:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  176 |         for(; pos < aib.size(); pos += (pos & -pos)){
      |               ~~~~^~~~~~~~~~~~
skyscraper.cpp: In function 'void solve()':
skyscraper.cpp:200:18: warning: variable 'p' set but not used [-Wunused-but-set-variable]
  200 |     int rot = 0, p = 0;
      |                  ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 568 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 508 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 2 ms 508 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 504 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 4 ms 596 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 592 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 592 KB Output is correct
34 Correct 1 ms 592 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 508 KB Output is correct
11 Correct 1 ms 484 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 504 KB Output is correct
18 Correct 1 ms 504 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 4 ms 592 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 592 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 592 KB Output is correct
30 Correct 1 ms 572 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 2 ms 592 KB Output is correct
34 Correct 2 ms 428 KB Output is correct
35 Correct 6 ms 592 KB Output is correct
36 Correct 2 ms 336 KB Output is correct
37 Correct 6 ms 592 KB Output is correct
38 Correct 7 ms 592 KB Output is correct
39 Correct 8 ms 848 KB Output is correct
40 Correct 8 ms 848 KB Output is correct
41 Correct 10 ms 1100 KB Output is correct
42 Correct 4 ms 592 KB Output is correct
43 Correct 4 ms 592 KB Output is correct
44 Correct 6 ms 592 KB Output is correct
45 Correct 8 ms 592 KB Output is correct
46 Correct 8 ms 592 KB Output is correct

Subtask #5
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 2 ms 480 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 4 ms 592 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 592 KB Output is correct
29 Correct 1 ms 592 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 592 KB Output is correct
34 Correct 2 ms 592 KB Output is correct
35 Correct 6 ms 592 KB Output is correct
36 Correct 2 ms 592 KB Output is correct
37 Correct 6 ms 592 KB Output is correct
38 Correct 8 ms 848 KB Output is correct
39 Correct 7 ms 708 KB Output is correct
40 Correct 9 ms 592 KB Output is correct
41 Correct 8 ms 592 KB Output is correct
42 Correct 4 ms 848 KB Output is correct
43 Correct 4 ms 1016 KB Output is correct
44 Correct 8 ms 652 KB Output is correct
45 Correct 8 ms 592 KB Output is correct
46 Correct 8 ms 592 KB Output is correct
47 Correct 14 ms 1360 KB Output is correct
48 Correct 5 ms 1788 KB Output is correct
49 Correct 6 ms 2040 KB Output is correct
50 Correct 4 ms 1588 KB Output is correct
51 Correct 18 ms 2640 KB Output is correct
52 Correct 24 ms 2384 KB Output is correct
53 Correct 8 ms 2384 KB Output is correct
54 Correct 1 ms 1360 KB Output is correct
55 Correct 2 ms 1360 KB Output is correct
56 Correct 601 ms 2552 KB Output is correct
57 Correct 53 ms 2128 KB Output is correct
58 Correct 4 ms 1616 KB Output is correct
59 Correct 4 ms 1616 KB Output is correct
60 Correct 7 ms 1736 KB Output is correct
61 Correct 6 ms 1872 KB Output is correct
62 Correct 8 ms 2808 KB Output is correct
63 Correct 12 ms 2524 KB Output is correct
64 Correct 12 ms 2384 KB Output is correct
65 Correct 14 ms 2640 KB Output is correct
66 Correct 36 ms 3360 KB Output is correct
67 Correct 42 ms 3492 KB Output is correct