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Submission #537341

# Submission time Handle Problem Language Result Execution time Memory
537341 2022-03-15T02:41:07 Z DJ035 Strange Device (APIO19_strange_device) C++17
100 / 100
 547 ms 69856 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2")
#include <bits/stdc++.h>
#define MEM 1111111
#define sanic ios_base::sync_with_stdio(0)
#define x first
#define y second
#define pf push_front
#define pb push_back
#define all(v) v.begin(), v.end()
#define sz size()
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pi;
const ll INF = 1e17+7;
const ll MOD = 998244353;
ll gcd(ll a, ll b){
    if(a%b) return gcd(b, a%b);
    return b;
}
ll t,n,m,a,b;
ll l[MEM], r[MEM];
signed main(){
    sanic; cin.tie(0);
    cin >> n >> a >> b;
    for(int i=0; i<n; i++)
        cin >> l[i] >> r[i];
    if((ll)(1e18)/a<b){
        ll ret=0;
        for(int i=0; i<n; i++) ret += r[i]-l[i]+1;
        cout << ret;
        return 0;
    }
    t = (a/gcd(a,b+1))*b;
    for(int i=0; i<n; i++) {
        if(r[i]-l[i]+1>=t){
            cout << t;
            return 0;
        }
    }
    vector<pi> v;
    for(int i=0; i<n; i++){
        if(l[i]%t<=r[i]%t) v.pb({l[i]%t,r[i]%t});
        else{
            v.pb({l[i]%t,t-1});
            v.pb({0,r[i]%t});
        }
    }
    sort(all(v));
    ll mn=v[0].x, mx=v[0].y;
    ll ans=0;
    for(int i=1; i<v.sz; i++){
        if(mx<v[i].x){
            ans += mx-mn+1;
            mn = v[i].x;
            mx = v[i].y;
        }
        mx = max(v[i].y,mx);
    }
    ans += mx-mn+1;
    cout << ans;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:54:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i=1; i<v.sz; i++){
      |                   ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 5 ms 1260 KB Output is correct
3 Correct 6 ms 1272 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 324 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 1216 KB Output is correct
17 Correct 50 ms 7772 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 403 ms 57680 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 495 ms 69796 KB Output is correct
3 Correct 459 ms 69672 KB Output is correct
4 Correct 451 ms 69620 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 495 ms 69796 KB Output is correct
3 Correct 459 ms 69672 KB Output is correct
4 Correct 451 ms 69620 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 490 ms 69768 KB Output is correct
7 Correct 454 ms 69676 KB Output is correct
8 Correct 479 ms 69856 KB Output is correct
9 Correct 547 ms 69652 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 495 ms 69796 KB Output is correct
3 Correct 459 ms 69672 KB Output is correct
4 Correct 451 ms 69620 KB Output is correct
5 Correct 0 ms 328 KB Output is correct
6 Correct 49 ms 7760 KB Output is correct
7 Correct 62 ms 7708 KB Output is correct
8 Correct 50 ms 7852 KB Output is correct
9 Correct 46 ms 7752 KB Output is correct
10 Correct 58 ms 7700 KB Output is correct
11 Correct 48 ms 7724 KB Output is correct
12 Correct 48 ms 7732 KB Output is correct
13 Correct 52 ms 7752 KB Output is correct
14 Correct 45 ms 7736 KB Output is correct
15 Correct 49 ms 7752 KB Output is correct
16 Correct 47 ms 7752 KB Output is correct
17 Correct 44 ms 7800 KB Output is correct
18 Correct 499 ms 69644 KB Output is correct
19 Correct 467 ms 69836 KB Output is correct
20 Correct 492 ms 69640 KB Output is correct
21 Correct 51 ms 7720 KB Output is correct
22 Correct 56 ms 7740 KB Output is correct
23 Correct 165 ms 26588 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 48 ms 7752 KB Output is correct
3 Correct 50 ms 7808 KB Output is correct
4 Correct 537 ms 69652 KB Output is correct
5 Correct 46 ms 7752 KB Output is correct
6 Correct 49 ms 7760 KB Output is correct
7 Correct 46 ms 7732 KB Output is correct
8 Correct 52 ms 7728 KB Output is correct
9 Correct 50 ms 7720 KB Output is correct
10 Correct 48 ms 7752 KB Output is correct
11 Correct 47 ms 7780 KB Output is correct
12 Correct 44 ms 7780 KB Output is correct
13 Correct 50 ms 7720 KB Output is correct
14 Correct 505 ms 69628 KB Output is correct
15 Correct 49 ms 7752 KB Output is correct
16 Correct 454 ms 69708 KB Output is correct
17 Correct 450 ms 69660 KB Output is correct
18 Correct 1 ms 340 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 5 ms 1260 KB Output is correct
3 Correct 6 ms 1272 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 324 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 1216 KB Output is correct
17 Correct 50 ms 7772 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 344 KB Output is correct
28 Correct 403 ms 57680 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 495 ms 69796 KB Output is correct
31 Correct 459 ms 69672 KB Output is correct
32 Correct 451 ms 69620 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 490 ms 69768 KB Output is correct
35 Correct 454 ms 69676 KB Output is correct
36 Correct 479 ms 69856 KB Output is correct
37 Correct 547 ms 69652 KB Output is correct
38 Correct 0 ms 328 KB Output is correct
39 Correct 49 ms 7760 KB Output is correct
40 Correct 62 ms 7708 KB Output is correct
41 Correct 50 ms 7852 KB Output is correct
42 Correct 46 ms 7752 KB Output is correct
43 Correct 58 ms 7700 KB Output is correct
44 Correct 48 ms 7724 KB Output is correct
45 Correct 48 ms 7732 KB Output is correct
46 Correct 52 ms 7752 KB Output is correct
47 Correct 45 ms 7736 KB Output is correct
48 Correct 49 ms 7752 KB Output is correct
49 Correct 47 ms 7752 KB Output is correct
50 Correct 44 ms 7800 KB Output is correct
51 Correct 499 ms 69644 KB Output is correct
52 Correct 467 ms 69836 KB Output is correct
53 Correct 492 ms 69640 KB Output is correct
54 Correct 51 ms 7720 KB Output is correct
55 Correct 56 ms 7740 KB Output is correct
56 Correct 165 ms 26588 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 48 ms 7752 KB Output is correct
59 Correct 50 ms 7808 KB Output is correct
60 Correct 537 ms 69652 KB Output is correct
61 Correct 46 ms 7752 KB Output is correct
62 Correct 49 ms 7760 KB Output is correct
63 Correct 46 ms 7732 KB Output is correct
64 Correct 52 ms 7728 KB Output is correct
65 Correct 50 ms 7720 KB Output is correct
66 Correct 48 ms 7752 KB Output is correct
67 Correct 47 ms 7780 KB Output is correct
68 Correct 44 ms 7780 KB Output is correct
69 Correct 50 ms 7720 KB Output is correct
70 Correct 505 ms 69628 KB Output is correct
71 Correct 49 ms 7752 KB Output is correct
72 Correct 454 ms 69708 KB Output is correct
73 Correct 450 ms 69660 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 1 ms 360 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 1 ms 324 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 5 ms 1224 KB Output is correct
80 Correct 509 ms 69800 KB Output is correct
81 Correct 517 ms 69680 KB Output is correct
82 Correct 499 ms 69688 KB Output is correct
83 Correct 491 ms 69676 KB Output is correct
84 Correct 514 ms 69716 KB Output is correct
85 Correct 515 ms 69712 KB Output is correct
86 Correct 182 ms 26540 KB Output is correct
87 Correct 1 ms 340 KB Output is correct