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Submission #721653

# Submission time Handle Problem Language Result Execution time Memory
721653 2023-04-11T06:18:29 Z victor_gao Strange Device (APIO19_strange_device) C++17
100 / 100
 687 ms 820 KB 
//#pragma GCC optimize("Ofast,unroll-loops,O3")
//#pragma GCC optimize("avx,avx2,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,fma,tune=native")
#include<bits/stdc++.h>
//#include<bits/extc++.h>
//#pragma pack(1)
#define fast ios::sync_with_stdio(0); cin.tie(0);
#define int long long
#define pii pair<int,int>
#define x first
#define y second
using namespace std;
//using namespace __gnu_pbds;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//typedef tree<int, null_type,less_equal<int>, rb_tree_tag,tree_order_statistics_node_update> order_multiset;
//typedef tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> order_set;
int n,a,b,t;
int findt(){
    int go=b+1,g=__gcd(go,a);
   // cout<<go<<" "<<a<<' '<<b<<" "<<g<<'\n';
    // lcm(go,a)/go*b
    if ((double)(log10(a/g)+log10(b))>=18.01) return -1;
    else return a/g*b;
}
set<pii>st;
void add(int l,int r){
 //   cout<<"add "<<l<<" "<<r<<'\n';
    if (st.empty()){
        st.insert(pii(l,r-l+1));
        return;
    }
    auto it=st.insert(pii(l,r-l+1)).x;
    pii now={l,r-l+1};
    while (it!=st.begin()){
        auto it1=prev(it);
        pii last=*it1;
        if (last.x+last.y>=now.x+now.y){
            st.erase(it);
            return;
        }
        if (last.x+last.y>=now.x){
            st.erase(it1);
            it=st.erase(it);
            now.y=(now.x+now.y-1)-last.x+1;
            now.x=last.x;
            it=st.insert(now).x;
        }
        else break;
    }
    while (it!=st.end()){
        auto it1=next(it);
        if (it1==st.end()) break;
        pii nxt=*it1;
        if (now.x+now.y>=nxt.x+nxt.y){
            st.erase(nxt);
            continue;
        }
        if (now.x+now.y>=nxt.x){
            st.erase(it1);
            it=st.erase(it);
            now.y=(nxt.x+nxt.y-1)-now.x+1;
            it=st.insert(now).x;
        }
        else break;
    }
}
signed main(){
    fast
    cin>>n>>a>>b;
    t=findt();
    if (n==1){
        int l,r; cin>>l>>r;
        if (t<0) cout<<r-l+1<<'\n';
        else if (r-l+1>=t) cout<<t<<'\n';
        else cout<<r-l+1<<'\n';
    }
    else if (t<0){
        int ans=0;
        for (int i=1;i<=n;i++){
            int l,r; cin>>l>>r;
            ans+=(r-l+1);
        }
        cout<<ans<<'\n';
    }
    else {
        for (int i=1;i<=n;i++){
            int l,r; cin>>l>>r;
            l%=t; r%=t;
            if (l>r){
                add(l,t-1);
                add(0,r);
            }
            else add(l,r);
        }
        int ans=0;
        for (auto i:st){
            ans+=i.y;
   //         cout<<i.x<<" ~ "<<i.x+i.y-1<<'\n';
        }
        cout<<ans<<'\n';
    }
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 8 ms 340 KB Output is correct
3 Correct 8 ms 340 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 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 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 7 ms 340 KB Output is correct
17 Correct 48 ms 340 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# 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 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 268 ms 304 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 471 ms 340 KB Output is correct
3 Correct 452 ms 320 KB Output is correct
4 Correct 467 ms 312 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 471 ms 340 KB Output is correct
3 Correct 452 ms 320 KB Output is correct
4 Correct 467 ms 312 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 458 ms 320 KB Output is correct
7 Correct 460 ms 340 KB Output is correct
8 Correct 517 ms 320 KB Output is correct
9 Correct 505 ms 328 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 471 ms 340 KB Output is correct
3 Correct 452 ms 320 KB Output is correct
4 Correct 467 ms 312 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 48 ms 340 KB Output is correct
7 Correct 47 ms 340 KB Output is correct
8 Correct 52 ms 332 KB Output is correct
9 Correct 48 ms 308 KB Output is correct
10 Correct 43 ms 212 KB Output is correct
11 Correct 49 ms 340 KB Output is correct
12 Correct 51 ms 316 KB Output is correct
13 Correct 54 ms 316 KB Output is correct
14 Correct 49 ms 340 KB Output is correct
15 Correct 48 ms 320 KB Output is correct
16 Correct 67 ms 320 KB Output is correct
17 Correct 50 ms 316 KB Output is correct
18 Correct 501 ms 340 KB Output is correct
19 Correct 501 ms 340 KB Output is correct
20 Correct 687 ms 316 KB Output is correct
21 Correct 54 ms 340 KB Output is correct
22 Correct 57 ms 212 KB Output is correct
23 Correct 159 ms 256 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 49 ms 320 KB Output is correct
3 Correct 51 ms 340 KB Output is correct
4 Correct 530 ms 320 KB Output is correct
5 Correct 54 ms 456 KB Output is correct
6 Correct 53 ms 560 KB Output is correct
7 Correct 52 ms 572 KB Output is correct
8 Correct 60 ms 540 KB Output is correct
9 Correct 56 ms 572 KB Output is correct
10 Correct 50 ms 520 KB Output is correct
11 Correct 51 ms 596 KB Output is correct
12 Correct 53 ms 568 KB Output is correct
13 Correct 75 ms 468 KB Output is correct
14 Correct 512 ms 396 KB Output is correct
15 Correct 61 ms 568 KB Output is correct
16 Correct 542 ms 596 KB Output is correct
17 Correct 534 ms 596 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 8 ms 340 KB Output is correct
3 Correct 8 ms 340 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 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 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 7 ms 340 KB Output is correct
17 Correct 48 ms 340 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 268 ms 304 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 471 ms 340 KB Output is correct
31 Correct 452 ms 320 KB Output is correct
32 Correct 467 ms 312 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 458 ms 320 KB Output is correct
35 Correct 460 ms 340 KB Output is correct
36 Correct 517 ms 320 KB Output is correct
37 Correct 505 ms 328 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 48 ms 340 KB Output is correct
40 Correct 47 ms 340 KB Output is correct
41 Correct 52 ms 332 KB Output is correct
42 Correct 48 ms 308 KB Output is correct
43 Correct 43 ms 212 KB Output is correct
44 Correct 49 ms 340 KB Output is correct
45 Correct 51 ms 316 KB Output is correct
46 Correct 54 ms 316 KB Output is correct
47 Correct 49 ms 340 KB Output is correct
48 Correct 48 ms 320 KB Output is correct
49 Correct 67 ms 320 KB Output is correct
50 Correct 50 ms 316 KB Output is correct
51 Correct 501 ms 340 KB Output is correct
52 Correct 501 ms 340 KB Output is correct
53 Correct 687 ms 316 KB Output is correct
54 Correct 54 ms 340 KB Output is correct
55 Correct 57 ms 212 KB Output is correct
56 Correct 159 ms 256 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 49 ms 320 KB Output is correct
59 Correct 51 ms 340 KB Output is correct
60 Correct 530 ms 320 KB Output is correct
61 Correct 54 ms 456 KB Output is correct
62 Correct 53 ms 560 KB Output is correct
63 Correct 52 ms 572 KB Output is correct
64 Correct 60 ms 540 KB Output is correct
65 Correct 56 ms 572 KB Output is correct
66 Correct 50 ms 520 KB Output is correct
67 Correct 51 ms 596 KB Output is correct
68 Correct 53 ms 568 KB Output is correct
69 Correct 75 ms 468 KB Output is correct
70 Correct 512 ms 396 KB Output is correct
71 Correct 61 ms 568 KB Output is correct
72 Correct 542 ms 596 KB Output is correct
73 Correct 534 ms 596 KB Output is correct
74 Correct 1 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 6 ms 472 KB Output is correct
80 Correct 496 ms 592 KB Output is correct
81 Correct 477 ms 596 KB Output is correct
82 Correct 528 ms 584 KB Output is correct
83 Correct 511 ms 584 KB Output is correct
84 Correct 485 ms 588 KB Output is correct
85 Correct 535 ms 604 KB Output is correct
86 Correct 125 ms 820 KB Output is correct
87 Correct 1 ms 320 KB Output is correct