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Submission #865875

# Submission time Handle Problem Language Result Execution time Memory
865875 2023-10-25T01:42:50 Z LittleOrange Bitaro, who Leaps through Time (JOI19_timeleap) C++17
100 / 100
 711 ms 156792 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
struct obj{
    ll l0,r0,l1,r1,c,m0,m1;
    obj(ll a,ll b, ll c, ll d, ll e, ll f, ll g):l0(a),r0(b),l1(c),r1(d),c(e),m0(f),m1(g){}
    obj(ll l, ll r):l0(l),r0(r-1),l1(l+1),r1(r),c(0),m0(l),m1(r-1){}
    obj():l0(0),r0(0),l1(0),r1(0),c(0),m0(0),m1(0){}
    ll cal(ll a, ll b) const{
        ll ans = 0;
        a = max(a,l0);
        if (a>r0){
            ans += a-r0;
            a = r0;
        }
        if (l1==r1){
            if (a<=m0) ans += c;
            else ans += c + a-m0;
            if (b<l1) ans += l1-b;
        }else{
            if (a>=m1) ans += a-m1;
            ll ot = max(min(a,m1),m0)-m0+l1;
            if (b<ot) ans += ot-b;
        }
        return ans;
    }
    obj operator+(const obj &o) const{
        if (l1==r1){
            if (o.l1==o.r1){
                return obj(l0,r0,o.l1,o.r1,c+o.cal(l1+0,o.l1),m0,m1);
            }else{
                ll ot = max(min(l1+0,o.m1),o.m0)-o.m0+o.l1;
                return obj(l0,r0,ot,ot,c+o.cal(l1+0,ot),m0,m1);
            }
        }else{
            if (o.l1==o.r1){
                if (o.m0<l1+0){
                    return obj(l0,r0,o.l1,o.r1,o.c+(l1+0-o.m0),m0,m1);
                }else if (o.m0<=r1+0){
                    ll ot = o.m0-0+m0-l1;
                    return obj(l0,r0,o.l1,o.r1,o.c,ot,m1);
                }else{
                    return obj(l0,r0,o.l1,o.r1,o.c,m1,m1);
                }
            }else{
                if (r1+0<=o.m0){
                    return obj(l0,r0,o.l1,o.l1,0,m1,m1);
                }else if (l1+0>=o.m1){
                    return obj(l0,r0,o.r1,o.r1,l1+0-o.m1,m0,m1);
                }else{
                    ll L1,R1,M0,M1;
                    if (l1+0<=o.m0){
                        L1 = o.l1;
                        M0 = m0+o.m0-(l1+0);
                    }else{
                        L1 = l1+0-o.m0+o.l1;
                        M0 = m0;
                    }
                    if (r1+0>=o.m1){
                        R1 = o.r1;
                        M1 = m1-(r1+0-o.m1);
                    }else{
                        R1 = o.r1-(o.m1-(r1+0));
                        M1 = m1;
                    }
                    return obj(l0,r0,L1,R1,0,M0,M1);
                }
            }
        }
    }
    void out()const{
        cout << l0 << " " << r0 << " " << l1 << " " << r1 << " " << c << " " << m0 << " " << m1 << "\n";
    }
};
struct segtree{
    vector<obj> a;
    ll n;
    segtree(ll N):n(N),a(N<<2){}
    void set(ll i, ll l, ll r, ll x, obj o){
        if (l == r) a[i] = o;
        else{
            ll m = l+r>>1;
            if(x<=m) set(i<<1,l,m,x,o);
            else set(i<<1|1,m+1,r,x,o);
            a[i] = a[i<<1]+a[i<<1|1];
        }
    }
    obj query(ll i, ll l, ll r, ll ql, ll qr){
        if (ql<=l&&r<=qr) return a[i];
        else{
            ll m = l+r>>1;
            if (ql<=m&&m<qr) return query(i<<1,l,m,ql,qr)+query(i<<1|1,m+1,r,ql,qr);
            else if (ql<=m )return query(i<<1,l,m,ql,qr);
            else return query(i<<1|1,m+1,r,ql,qr);
        }
    }
};
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    ll n,q;
    cin >> n >> q;
    vector<ll> L(n-1),R(n-1);
    for(ll i = 0;i<n-1;i++) cin >> L[i] >> R[i];
    segtree t0(n-1),t1(n-1);
    for(ll i = 0;i<n-1;i++){
        t0.set(1,0,n-1,i,obj(L[i],R[i]));
        t1.set(1,0,n-1,n-2-i,obj(L[i],R[i]));
    }
    while(q--){
        ll t,a,b,c,d;
        cin >> t >> a >> b >> c;a--;
        if (t==1){
            L[a] = b;
            R[a] = c;
            t0.set(1,0,n-1,a,obj(b,c));
            t1.set(1,0,n-1,n-2-a,obj(b,c));
        }else{
            c--;
            cin >> d;
            ll ans = 0;
            ll t = b;
            ll cur = a;
            if (c>a){
                obj o = t0.query(1,0,n-1,a,c-1);
                //o.out();
                ans = o.cal(b,d);
            }else if (c<a){
                obj o = t1.query(1,0,n-1,(n-2)-(a-1),(n-2)-c);
                //o.out();
                ans = o.cal(b,d);
            }else{
                ans = max(0ll,b-d);
            }
            cout << ans << "\n";
        }
    }
}

Compilation message

timeleap.cpp: In constructor 'segtree::segtree(ll)':
timeleap.cpp:77:8: warning: 'segtree::n' will be initialized after [-Wreorder]
   77 |     ll n;
      |        ^
timeleap.cpp:76:17: warning:   'std::vector<obj> segtree::a' [-Wreorder]
   76 |     vector<obj> a;
      |                 ^
timeleap.cpp:78:5: warning:   when initialized here [-Wreorder]
   78 |     segtree(ll N):n(N),a(N<<2){}
      |     ^~~~~~~
timeleap.cpp: In member function 'void segtree::set(ll, ll, ll, ll, obj)':
timeleap.cpp:82:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   82 |             ll m = l+r>>1;
      |                    ~^~
timeleap.cpp: In member function 'obj segtree::query(ll, ll, ll, ll, ll)':
timeleap.cpp:91:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   91 |             ll m = l+r>>1;
      |                    ~^~
timeleap.cpp: In function 'int main()':
timeleap.cpp:121:16: warning: unused variable 't' [-Wunused-variable]
  121 |             ll t = b;
      |                ^
timeleap.cpp:122:16: warning: unused variable 'cur' [-Wunused-variable]
  122 |             ll cur = a;
      |                ^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 452 KB Output is correct
8 Correct 0 ms 460 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 864 KB Output is correct
12 Correct 2 ms 864 KB Output is correct
13 Correct 2 ms 856 KB Output is correct
14 Correct 2 ms 864 KB Output is correct
15 Correct 2 ms 976 KB Output is correct
16 Correct 2 ms 864 KB Output is correct
17 Correct 2 ms 1120 KB Output is correct
18 Correct 2 ms 868 KB Output is correct
19 Correct 2 ms 864 KB Output is correct
20 Correct 2 ms 864 KB Output is correct
21 Correct 2 ms 856 KB Output is correct
22 Correct 2 ms 860 KB Output is correct
23 Correct 2 ms 860 KB Output is correct
24 Correct 2 ms 864 KB Output is correct
25 Correct 2 ms 776 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 2 ms 864 KB Output is correct
28 Correct 2 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 3 ms 864 KB Output is correct
31 Correct 2 ms 856 KB Output is correct
32 Correct 2 ms 868 KB Output is correct
33 Correct 2 ms 864 KB Output is correct
34 Correct 2 ms 864 KB Output is correct
35 Correct 2 ms 936 KB Output is correct
36 Correct 2 ms 864 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 2 ms 860 KB Output is correct
41 Correct 0 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 605 ms 144540 KB Output is correct
2 Correct 558 ms 136964 KB Output is correct
3 Correct 559 ms 138580 KB Output is correct
4 Correct 546 ms 134456 KB Output is correct
5 Correct 567 ms 144384 KB Output is correct
6 Correct 564 ms 141916 KB Output is correct
7 Correct 601 ms 146092 KB Output is correct
8 Correct 592 ms 152288 KB Output is correct
9 Correct 552 ms 135840 KB Output is correct
10 Correct 601 ms 145748 KB Output is correct
11 Correct 582 ms 144580 KB Output is correct
12 Correct 601 ms 154428 KB Output is correct
13 Correct 601 ms 156792 KB Output is correct
14 Correct 0 ms 548 KB Output is correct

Subtask #3
66.0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 452 KB Output is correct
8 Correct 0 ms 460 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 864 KB Output is correct
12 Correct 2 ms 864 KB Output is correct
13 Correct 2 ms 856 KB Output is correct
14 Correct 2 ms 864 KB Output is correct
15 Correct 2 ms 976 KB Output is correct
16 Correct 2 ms 864 KB Output is correct
17 Correct 2 ms 1120 KB Output is correct
18 Correct 2 ms 868 KB Output is correct
19 Correct 2 ms 864 KB Output is correct
20 Correct 2 ms 864 KB Output is correct
21 Correct 2 ms 856 KB Output is correct
22 Correct 2 ms 860 KB Output is correct
23 Correct 2 ms 860 KB Output is correct
24 Correct 2 ms 864 KB Output is correct
25 Correct 2 ms 776 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 2 ms 864 KB Output is correct
28 Correct 2 ms 860 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 3 ms 864 KB Output is correct
31 Correct 2 ms 856 KB Output is correct
32 Correct 2 ms 868 KB Output is correct
33 Correct 2 ms 864 KB Output is correct
34 Correct 2 ms 864 KB Output is correct
35 Correct 2 ms 936 KB Output is correct
36 Correct 2 ms 864 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 2 ms 860 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 605 ms 144540 KB Output is correct
43 Correct 558 ms 136964 KB Output is correct
44 Correct 559 ms 138580 KB Output is correct
45 Correct 546 ms 134456 KB Output is correct
46 Correct 567 ms 144384 KB Output is correct
47 Correct 564 ms 141916 KB Output is correct
48 Correct 601 ms 146092 KB Output is correct
49 Correct 592 ms 152288 KB Output is correct
50 Correct 552 ms 135840 KB Output is correct
51 Correct 601 ms 145748 KB Output is correct
52 Correct 582 ms 144580 KB Output is correct
53 Correct 601 ms 154428 KB Output is correct
54 Correct 601 ms 156792 KB Output is correct
55 Correct 0 ms 548 KB Output is correct
56 Correct 637 ms 139844 KB Output is correct
57 Correct 622 ms 130920 KB Output is correct
58 Correct 657 ms 143748 KB Output is correct
59 Correct 656 ms 144980 KB Output is correct
60 Correct 637 ms 134872 KB Output is correct
61 Correct 668 ms 149588 KB Output is correct
62 Correct 662 ms 148560 KB Output is correct
63 Correct 672 ms 148048 KB Output is correct
64 Correct 684 ms 149332 KB Output is correct
65 Correct 664 ms 141704 KB Output is correct
66 Correct 652 ms 142932 KB Output is correct
67 Correct 674 ms 148548 KB Output is correct
68 Correct 631 ms 136740 KB Output is correct
69 Correct 674 ms 152912 KB Output is correct
70 Correct 622 ms 135636 KB Output is correct
71 Correct 620 ms 130516 KB Output is correct
72 Correct 642 ms 136088 KB Output is correct
73 Correct 687 ms 149676 KB Output is correct
74 Correct 682 ms 150536 KB Output is correct
75 Correct 683 ms 153356 KB Output is correct
76 Correct 711 ms 153936 KB Output is correct
77 Correct 0 ms 348 KB Output is correct