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Submission #835368

# Submission time Handle Problem Language Result Execution time Memory
835368 2023-08-23T13:52:07 Z dimashhh Strange Device (APIO19_strange_device) C++17
100 / 100
 386 ms 69752 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

const int N = 1e6 + 1,MOD = 1e9 + 7;

ll n,l[N],r[N],a,b,ans;
__int128_t A,B,cyc,inf;
vector<pair<ll,ll>> all;
void test(){
    cin >> n >> a >> b;
    A = a;
    B = b;
    for(int i = 1;i <= n;i++){
        cin >> l[i] >> r[i];
    }
    if(n == 1){
          ll x = a / gcd(a,b + 1),val = r[1] - l[1] + 1;
          if(x >= (val + b - 1) / val){
              cout << (x % MOD * (b % MOD)) % MOD;
              return;
          }
          cout << val % MOD;
          return;
      }
    cyc = A * B / (gcd(a,b + 1));
    inf = r[n];
    
    ll _ = a * b / (gcd(a,b + 1));
    for(int i = 1;i <= n;i++){
        l[i] %= _;
        r[i] %= _;
        // cout << l[i] << ' ' << r[i] << '\n';
        if(r[i] >= l[i]){
            all.push_back({l[i],r[i]});
            continue;
        }
        all.push_back({0,r[i]});
        all.push_back({l[i],_ - 1});
    }
    ll ans = 0;
    sort(all.begin(),all.end());
    // for(auto [x,y]:all){
    //     cout << x << ' ' << y << '\n';
    // }
    // cout << '\n';
    for(int i = 0;i < all.size();i++){
        ll mx = all[i].second,_l = all[i].first;
        for(int j = i + 1;j < all.size();j++){
            if(mx >= all[j].first){
                i = j;
                mx = max(mx,all[j].second);
            }else break;
        }
        // cout << _l << ' ' << mx << ' ' << i << '\n';
        ans += (mx - _l + 1) ;
    }
    cout << ans;
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int T = 1;
    //cin >> T;
    while(T--) test();
}

Compilation message

strange_device.cpp: In function 'void test()':
strange_device.cpp:48:21: 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]
   48 |     for(int i = 0;i < all.size();i++){
      |                   ~~^~~~~~~~~~~~
strange_device.cpp:50:29: 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]
   50 |         for(int j = i + 1;j < all.size();j++){
      |                           ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 4 ms 1252 KB Output is correct
3 Correct 4 ms 1260 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 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 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 1236 KB Output is correct
17 Correct 35 ms 7728 KB Output is correct
18 Correct 0 ms 332 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 340 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 328 KB Output is correct
2 Correct 1 ms 376 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 220 ms 57696 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 356 ms 46336 KB Output is correct
3 Correct 314 ms 69564 KB Output is correct
4 Correct 313 ms 69532 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 356 ms 46336 KB Output is correct
3 Correct 314 ms 69564 KB Output is correct
4 Correct 313 ms 69532 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 323 ms 69612 KB Output is correct
7 Correct 325 ms 69548 KB Output is correct
8 Correct 338 ms 69592 KB Output is correct
9 Correct 342 ms 69540 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 356 ms 46336 KB Output is correct
3 Correct 314 ms 69564 KB Output is correct
4 Correct 313 ms 69532 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 31 ms 7752 KB Output is correct
7 Correct 35 ms 7756 KB Output is correct
8 Correct 30 ms 7684 KB Output is correct
9 Correct 32 ms 7740 KB Output is correct
10 Correct 31 ms 7784 KB Output is correct
11 Correct 32 ms 7736 KB Output is correct
12 Correct 33 ms 7704 KB Output is correct
13 Correct 33 ms 7736 KB Output is correct
14 Correct 31 ms 7704 KB Output is correct
15 Correct 34 ms 7820 KB Output is correct
16 Correct 43 ms 7708 KB Output is correct
17 Correct 33 ms 7756 KB Output is correct
18 Correct 339 ms 69508 KB Output is correct
19 Correct 317 ms 69492 KB Output is correct
20 Correct 366 ms 69572 KB Output is correct
21 Correct 35 ms 7752 KB Output is correct
22 Correct 30 ms 7768 KB Output is correct
23 Correct 101 ms 26680 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 34 ms 7708 KB Output is correct
3 Correct 38 ms 7724 KB Output is correct
4 Correct 383 ms 69700 KB Output is correct
5 Correct 40 ms 7776 KB Output is correct
6 Correct 34 ms 7748 KB Output is correct
7 Correct 33 ms 7772 KB Output is correct
8 Correct 36 ms 7716 KB Output is correct
9 Correct 34 ms 7728 KB Output is correct
10 Correct 35 ms 7752 KB Output is correct
11 Correct 39 ms 7736 KB Output is correct
12 Correct 31 ms 7752 KB Output is correct
13 Correct 41 ms 7764 KB Output is correct
14 Correct 354 ms 69532 KB Output is correct
15 Correct 34 ms 7752 KB Output is correct
16 Correct 327 ms 69568 KB Output is correct
17 Correct 339 ms 69752 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 4 ms 1252 KB Output is correct
3 Correct 4 ms 1260 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 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 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 4 ms 1236 KB Output is correct
17 Correct 35 ms 7728 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 0 ms 328 KB Output is correct
25 Correct 1 ms 376 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 220 ms 57696 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 356 ms 46336 KB Output is correct
31 Correct 314 ms 69564 KB Output is correct
32 Correct 313 ms 69532 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 323 ms 69612 KB Output is correct
35 Correct 325 ms 69548 KB Output is correct
36 Correct 338 ms 69592 KB Output is correct
37 Correct 342 ms 69540 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 31 ms 7752 KB Output is correct
40 Correct 35 ms 7756 KB Output is correct
41 Correct 30 ms 7684 KB Output is correct
42 Correct 32 ms 7740 KB Output is correct
43 Correct 31 ms 7784 KB Output is correct
44 Correct 32 ms 7736 KB Output is correct
45 Correct 33 ms 7704 KB Output is correct
46 Correct 33 ms 7736 KB Output is correct
47 Correct 31 ms 7704 KB Output is correct
48 Correct 34 ms 7820 KB Output is correct
49 Correct 43 ms 7708 KB Output is correct
50 Correct 33 ms 7756 KB Output is correct
51 Correct 339 ms 69508 KB Output is correct
52 Correct 317 ms 69492 KB Output is correct
53 Correct 366 ms 69572 KB Output is correct
54 Correct 35 ms 7752 KB Output is correct
55 Correct 30 ms 7768 KB Output is correct
56 Correct 101 ms 26680 KB Output is correct
57 Correct 1 ms 332 KB Output is correct
58 Correct 34 ms 7708 KB Output is correct
59 Correct 38 ms 7724 KB Output is correct
60 Correct 383 ms 69700 KB Output is correct
61 Correct 40 ms 7776 KB Output is correct
62 Correct 34 ms 7748 KB Output is correct
63 Correct 33 ms 7772 KB Output is correct
64 Correct 36 ms 7716 KB Output is correct
65 Correct 34 ms 7728 KB Output is correct
66 Correct 35 ms 7752 KB Output is correct
67 Correct 39 ms 7736 KB Output is correct
68 Correct 31 ms 7752 KB Output is correct
69 Correct 41 ms 7764 KB Output is correct
70 Correct 354 ms 69532 KB Output is correct
71 Correct 34 ms 7752 KB Output is correct
72 Correct 327 ms 69568 KB Output is correct
73 Correct 339 ms 69752 KB Output is correct
74 Correct 1 ms 340 KB Output is correct
75 Correct 0 ms 340 KB Output is correct
76 Correct 0 ms 336 KB Output is correct
77 Correct 0 ms 212 KB Output is correct
78 Correct 0 ms 212 KB Output is correct
79 Correct 3 ms 1256 KB Output is correct
80 Correct 382 ms 69556 KB Output is correct
81 Correct 386 ms 69532 KB Output is correct
82 Correct 366 ms 69272 KB Output is correct
83 Correct 361 ms 69048 KB Output is correct
84 Correct 378 ms 69060 KB Output is correct
85 Correct 356 ms 69144 KB Output is correct
86 Correct 98 ms 26468 KB Output is correct
87 Correct 1 ms 340 KB Output is correct