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답안 #416068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
416068 2021-06-01T21:50:16 Z Lobo Pinball (JOI14_pinball) C++17
100 / 100
 469 ms 35572 KB 
#include <bits/stdc++.h>
 
using namespace std;

const long long INFll = 1e18;
const int INFii = 1e9;
typedef long long ll;
typedef int ii;
typedef double dbl;
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back

#define maxn 110000
//LEMBRAR DE MUDAR

ll n, m, dp1[5*maxn], dp2[5*maxn], tr[20*maxn][2];
ll a[maxn], b[maxn], c[maxn], d[maxn];

void build(ll no, ll l, ll r) {
    tr[no][0] = tr[no][1] = INFll;

    ll mid = (l+r)/2;
    ll f1 = 2*no;
    ll f2 = 2*no+1;

    if(l == r) return;
    build(f1,l,mid);
    build(f2,mid+1,r);
}

//seg de minimo
void att(ll no, ll l, ll r, ll pos, ll val, ll p) {
    if(l > pos || r < pos) return;
    else if(l == r) {
        tr[no][p] = min(val,tr[no][p]);
    }
    else {
        ll mid = (l+r)/2;
        ll f1 = 2*no;
        ll f2 = 2*no+1;
        
        att(f1,l,mid,pos,val,p);
        att(f2,mid+1,r,pos,val,p);
        tr[no][p] = min(tr[f1][p],tr[f2][p]);
    }
}

ll query(ll no, ll l, ll r, ll L, ll R, ll p) {
    if(l > R || r < L) return INFll;
    else if(l >= L && r <= R) {
        return tr[no][p];
    }
    else {
        ll mid = (l+r)/2;
        ll f1 = 2*no;
        ll f2 = 2*no+1;
        
        return min(query(f1,l,mid,L,R,p),query(f2,mid+1,r,L,R,p));
    }
}

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

    //freopen("in.in", "r", stdin);
    //freopen("____.out", "w", stdout);

    cin >> m >> n;

    vector<ll> comp;
    for(ii i = 1; i <= m; i++) {
        cin >> a[i] >> b[i] >> c[i] >> d[i];

        if(a[i]-1 != 0) comp.pb(a[i]-1);
        comp.pb(a[i]);
        comp.pb(c[i]);
        comp.pb(b[i]);
        if(b[i]+1 != n+1) comp.pb(b[i]+1);
        
    }

    sort(comp.begin(),comp.end());
    comp.erase(unique(comp.begin(),comp.end()),comp.end());

    n = comp.size();
    build(1,1,n);
    for(ll i = 1; i <= n; i++) {
        dp1[i] = dp2[i] = INFll;
    }

    dp1[1] = 0;
    att(1,1,n,1,0,0);
    dp2[n] = 0;
    att(1,1,n,n,0,1);

    for(ll i = 1; i <= m; i++) {
        a[i] = upper_bound(comp.begin(),comp.end(),a[i]) - comp.begin();
        b[i] = upper_bound(comp.begin(),comp.end(),b[i]) - comp.begin();
        c[i] = upper_bound(comp.begin(),comp.end(),c[i]) - comp.begin();
    }

    ll ans = INFll;
    for(ll i = 1; i <= m; i++) {
        ll mn1 = query(1,1,n,a[i],b[i],0);
        dp1[c[i]] = min(dp1[c[i]], mn1+d[i]);
        att(1,1,n,c[i],mn1+d[i],0);

        ll mn2 = query(1,1,n,a[i],b[i],1);
        dp2[c[i]] = min(dp1[c[i]], mn2+d[i]);
        att(1,1,n,c[i],mn2+d[i],1);

        ans = min(ans, mn1+mn2+d[i]);
    }

    if(ans >= (ll) 1e16) cout << -1 << endl;
    else cout << ans << endl;
    return 0;

}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 332 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 3 ms 596 KB Output is correct
18 Correct 3 ms 460 KB Output is correct
19 Correct 4 ms 816 KB Output is correct
20 Correct 3 ms 588 KB Output is correct
21 Correct 2 ms 592 KB Output is correct
22 Correct 4 ms 844 KB Output is correct
23 Correct 3 ms 872 KB Output is correct
24 Correct 3 ms 844 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 332 KB Output is correct
10 Correct 2 ms 332 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 3 ms 596 KB Output is correct
18 Correct 3 ms 460 KB Output is correct
19 Correct 4 ms 816 KB Output is correct
20 Correct 3 ms 588 KB Output is correct
21 Correct 2 ms 592 KB Output is correct
22 Correct 4 ms 844 KB Output is correct
23 Correct 3 ms 872 KB Output is correct
24 Correct 3 ms 844 KB Output is correct
25 Correct 33 ms 2828 KB Output is correct
26 Correct 94 ms 8488 KB Output is correct
27 Correct 310 ms 18156 KB Output is correct
28 Correct 206 ms 11344 KB Output is correct
29 Correct 228 ms 12064 KB Output is correct
30 Correct 289 ms 12668 KB Output is correct
31 Correct 399 ms 23224 KB Output is correct
32 Correct 371 ms 22000 KB Output is correct
33 Correct 64 ms 8128 KB Output is correct
34 Correct 210 ms 17992 KB Output is correct
35 Correct 278 ms 35572 KB Output is correct
36 Correct 469 ms 35556 KB Output is correct
37 Correct 417 ms 35520 KB Output is correct
38 Correct 400 ms 35504 KB Output is correct