oj.uz

Submission #1047847

# Submission time Handle Problem Language Result Execution time Memory
1047847 2024-08-07T16:39:08 Z KiaRez Treatment Project (JOI20_treatment) C++17
35 / 100
 298 ms 524288 KB 
/*
    IN THE NAME OF GOD
*/
#include <bits/stdc++.h>

// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef long double ld;

#define F                                      first
#define S                                      second
#define Mp                                     make_pair
#define pb                                     push_back
#define pf                                     push_front
#define size(x)                                ((ll)x.size())
#define all(x)                                 (x).begin(),(x).end()
#define kill(x)		                           cout << x << '\n', exit(0);
#define fuck(x)                                cout << "(" << #x << " , " << x << ")" << endl
#define endl                                   '\n'

const int M = 1e5+5, N = 3e5+23, lg = 17;
ll Mod = 1e9+7; //998244353;

inline ll MOD(ll a, ll mod=Mod) {a%=mod; (a<0)&&(a+=mod); return a;}
inline ll poww(ll a, ll b, ll mod=Mod) {
    ll ans = 1;
    a=MOD(a, mod);
    while (b) {
        if (b & 1) ans = MOD(ans*a, mod);
        b >>= 1;
        a = MOD(a*a, mod);
    }
    return ans;
}

int m, n, par[N], L[N], R[N], t[N], p[N], seg[N];
ll c[N], d[N * 3 * lg], id=1, mark[N * 3 * lg];
vector<pll> adj[N * 3 * lg];
vector<int> comp[2];
bool cmp(int i, int j) {
    return (t[i] < t[j]);
}

void query(int v, int l, int r, int ind=1, int lc=1, int rc=(1<<lg)+1) {
    if(lc >= r) return;
    if(rc <= r) {
        adj[v].pb({seg[ind], 0}); return;
    }
    int mid = (lc+rc)/2;
    query(v, l, r, 2*ind, lc, mid);
    query(v, l, r, 2*ind+1, mid, rc);
}

void update(int ind, int v) {
    adj[id].pb({seg[ind], 0});
    adj[id].pb({v, c[v]});
    seg[ind] = id; 
    ind/=2; id++;
    while(ind > 0) {
        seg[ind] = id++;
        adj[seg[ind]].pb({seg[2*ind], 0});
        adj[seg[ind]].pb({seg[2*ind+1], 0});
        ind /= 2;
    }
}

int main () {
	ios_base::sync_with_stdio(false), cin.tie(0);

	cin>>n>>m; id = m + 1;
    for(int i=1; i<=m; i++) {
        cin>>t[i]>>L[i]>>R[i]>>c[i];
        p[i] = i;
        comp[0].pb(L[i]-t[i]);
        comp[1].pb(L[i]+t[i]);
    }
    sort(p+1, p+m+1, cmp);

    for(int i=(1<<(lg + 1)); i>=1; i--) {
        seg[i] = id ++;
        if(i < (1<<lg)) {
            adj[seg[i]].pb({seg[2*i], 0});
            adj[seg[i]].pb({seg[2*i+1], 0});
        }
    }

    comp[0].pb(2e9); comp[1].pb(2e9);
sort(all(comp[0])); comp[0].resize(unique(all(comp[0]))-comp[0].begin());
sort(all(comp[1])); comp[1].resize(unique(all(comp[1]))-comp[1].begin());
    
    for(int i=1; i<=m; i++) {
        int ptr = lower_bound(all(comp[0]), R[p[i]]-t[p[i]]+2)-comp[0].begin();
        if(ptr != 0) {
            query(p[i], 1, ptr + 1);
        }
        ptr = lower_bound(all(comp[0]), L[p[i]]-t[p[i]])-comp[0].begin()+1;
        update((1<<lg)+ptr-1, p[i]);
    }

    // for(int i=1; i<=m; i++) {
    //     for(int j=1; j<i; j++) {
    //         if(L[p[j]]-t[p[j]]<=R[p[i]]-t[p[i]]+1) {
    //             cout<<i<<' '<<j<<endl;
    //             adj[p[i]].pb({p[j], c[p[j]]});
    //         }
    //     }
    // }

    for(int i=(1<<(lg + 1)); i>=1; i--) {
        seg[i] = id ++;
        if(i < (1<<lg)) {
            adj[seg[i]].pb({seg[2*i], 0});
            adj[seg[i]].pb({seg[2*i+1], 0});
        }
    }
    
    for(int i=m; i>=1; i--) {
        int ptr = lower_bound(all(comp[1]), R[p[i]]+t[p[i]]+2)-comp[1].begin();
        if(ptr != 0) {
            query(p[i], 1, ptr + 1);
        }
        ptr = lower_bound(all(comp[1]), L[p[i]]+t[p[i]])-comp[1].begin()+1;
        update((1<<lg)+ptr-1, p[i]);
    }

    // for(int i=1; i<=m; i++) {
    //     for(int j=i+1; j<=m; j++) {
    //         if(L[p[j]]+t[p[j]]<=R[p[i]]+t[p[i]]+1) {
    //             cout<<i<<' '<<j<<endl;
    //             adj[p[i]].pb({p[j], c[p[j]]});
    //         }
    //     }
    // }

    priority_queue<pll, vector<pll>, greater<pll>> pq;
    for(int i=1; i<=m; i++) {
        if(L[i] == 1) {
            pq.push({c[i], i});
        }
    }

    while(size(pq) > 0) {
        pll v = pq.top(); pq.pop(); 
        if(mark[v.S] == 1) continue;
        // fuck(v.S);

        d[v.S] = v.F, mark[v.S] = 1;
        for(auto u : adj[v.S]) {
            if(mark[u.F] == 1) continue;
            // d[u.F] = min(d[u.F], v.F+u.S);
            // if(d[u.F] == v.F + u.S) {
            //     par[u.F] = v.S;
                pq.push({v.F+u.S, u.F});
            // }
            // fuck(u.F);
        }
    }

    ll ans = 2e18;
    for(int i=1 ; i<=m; i++) {
        if(d[i] == 0) continue;
        if(R[i] == n) {
            ans = min(ans, d[i]);
        }
    }

    cout<<(ans==2e18 ? -1 : ans)<<endl;

	return 0;
}

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Runtime error 298 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 373072 KB Output is correct
2 Correct 99 ms 373124 KB Output is correct
3 Correct 103 ms 373108 KB Output is correct
4 Correct 95 ms 373124 KB Output is correct
5 Correct 95 ms 373076 KB Output is correct
6 Correct 102 ms 373076 KB Output is correct
7 Correct 99 ms 373104 KB Output is correct
8 Correct 94 ms 373072 KB Output is correct
9 Correct 104 ms 373092 KB Output is correct
10 Correct 94 ms 373292 KB Output is correct
11 Correct 95 ms 373208 KB Output is correct
12 Correct 100 ms 373072 KB Output is correct
13 Correct 98 ms 373076 KB Output is correct
14 Correct 95 ms 373076 KB Output is correct
15 Correct 95 ms 373072 KB Output is correct
16 Correct 101 ms 373328 KB Output is correct
17 Correct 94 ms 373076 KB Output is correct
18 Correct 104 ms 373072 KB Output is correct
19 Correct 94 ms 373072 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 373072 KB Output is correct
2 Correct 99 ms 373124 KB Output is correct
3 Correct 103 ms 373108 KB Output is correct
4 Correct 95 ms 373124 KB Output is correct
5 Correct 95 ms 373076 KB Output is correct
6 Correct 102 ms 373076 KB Output is correct
7 Correct 99 ms 373104 KB Output is correct
8 Correct 94 ms 373072 KB Output is correct
9 Correct 104 ms 373092 KB Output is correct
10 Correct 94 ms 373292 KB Output is correct
11 Correct 95 ms 373208 KB Output is correct
12 Correct 100 ms 373072 KB Output is correct
13 Correct 98 ms 373076 KB Output is correct
14 Correct 95 ms 373076 KB Output is correct
15 Correct 95 ms 373072 KB Output is correct
16 Correct 101 ms 373328 KB Output is correct
17 Correct 94 ms 373076 KB Output is correct
18 Correct 104 ms 373072 KB Output is correct
19 Correct 94 ms 373072 KB Output is correct
20 Correct 135 ms 386744 KB Output is correct
21 Correct 120 ms 386640 KB Output is correct
22 Correct 113 ms 386640 KB Output is correct
23 Correct 112 ms 386640 KB Output is correct
24 Correct 125 ms 386952 KB Output is correct
25 Correct 129 ms 386644 KB Output is correct
26 Correct 116 ms 386692 KB Output is correct
27 Correct 116 ms 386540 KB Output is correct
28 Correct 135 ms 387004 KB Output is correct
29 Correct 126 ms 386564 KB Output is correct
30 Correct 109 ms 383568 KB Output is correct
31 Correct 109 ms 383568 KB Output is correct
32 Correct 131 ms 386920 KB Output is correct
33 Correct 129 ms 386964 KB Output is correct
34 Correct 151 ms 386644 KB Output is correct
35 Correct 127 ms 386856 KB Output is correct
36 Correct 134 ms 386808 KB Output is correct
37 Correct 134 ms 386680 KB Output is correct

Subtask #4
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 298 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -