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Submission #972829

# Submission time Handle Problem Language Result Execution time Memory
972829 2024-05-01T08:40:02 Z vjudge1 Strange Device (APIO19_strange_device) C++14
100 / 100
 375 ms 71752 KB 
#include<bits/stdc++.h>

using namespace std;

#define int long long

const int N=1e6+10, inf=2e18;
int n, a, b;
int l[N], r[N];

int32_t main(){
   ios_base::sync_with_stdio(false);
   cin.tie(nullptr);
   cin >> n >> a >> b;
   for (int i=1; i<=n; ++i) cin >> l[i] >> r[i];
   int mod=a/__gcd(b+1, a);
   if (mod>inf/b){
      int ans=0;
      for (int i=1; i<=n; ++i) ans+=r[i]-l[i]+1;
      cout << ans << '\n';
      return 0;
   }
   mod*=b;
   vector<pair<int, int>> v;
   for (int i=1; i<=n; ++i){
      if (r[i]-l[i]+1>=mod){
         cout << mod << '\n';
         return 0;
      }
      l[i]%=mod; r[i]%=mod;
      if (l[i]>r[i]){
         v.emplace_back(l[i], mod-1);
         v.emplace_back(0, r[i]);
      }else{
         v.emplace_back(l[i], r[i]);
      }
   }
   sort(v.begin(), v.end());
   int ans=0;
   int ll=0, rr=-1;
   for (auto &i:v){
      if (rr+1>=i.first) rr=max(rr, i.second);
      else{
         ans+=rr-ll+1;
         ll=i.first, rr=i.second;
      }
   }
   cout << ans+rr-ll+1 << '\n';
   return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 4 ms 3164 KB Output is correct
3 Correct 5 ms 3164 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 4 ms 3164 KB Output is correct
17 Correct 35 ms 12708 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2508 KB Output is correct
5 Correct 1 ms 2400 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2400 KB Output is correct
2 Correct 1 ms 2404 KB Output is correct
3 Correct 1 ms 2528 KB Output is correct
4 Correct 1 ms 2404 KB Output is correct
5 Correct 223 ms 59624 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2404 KB Output is correct
2 Correct 322 ms 71008 KB Output is correct
3 Correct 313 ms 70628 KB Output is correct
4 Correct 303 ms 70996 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2404 KB Output is correct
2 Correct 322 ms 71008 KB Output is correct
3 Correct 313 ms 70628 KB Output is correct
4 Correct 303 ms 70996 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 324 ms 71752 KB Output is correct
7 Correct 320 ms 71516 KB Output is correct
8 Correct 309 ms 70620 KB Output is correct
9 Correct 336 ms 71652 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2404 KB Output is correct
2 Correct 322 ms 71008 KB Output is correct
3 Correct 313 ms 70628 KB Output is correct
4 Correct 303 ms 70996 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 31 ms 12660 KB Output is correct
7 Correct 44 ms 12496 KB Output is correct
8 Correct 30 ms 12524 KB Output is correct
9 Correct 32 ms 12496 KB Output is correct
10 Correct 32 ms 12904 KB Output is correct
11 Correct 33 ms 12492 KB Output is correct
12 Correct 31 ms 12496 KB Output is correct
13 Correct 37 ms 12492 KB Output is correct
14 Correct 35 ms 12516 KB Output is correct
15 Correct 36 ms 12656 KB Output is correct
16 Correct 34 ms 12496 KB Output is correct
17 Correct 33 ms 12652 KB Output is correct
18 Correct 327 ms 70216 KB Output is correct
19 Correct 309 ms 71104 KB Output is correct
20 Correct 350 ms 70372 KB Output is correct
21 Correct 35 ms 12496 KB Output is correct
22 Correct 31 ms 12632 KB Output is correct
23 Correct 92 ms 33368 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 35 ms 12652 KB Output is correct
3 Correct 35 ms 12660 KB Output is correct
4 Correct 359 ms 70884 KB Output is correct
5 Correct 35 ms 12644 KB Output is correct
6 Correct 43 ms 12680 KB Output is correct
7 Correct 33 ms 12492 KB Output is correct
8 Correct 34 ms 12548 KB Output is correct
9 Correct 35 ms 12496 KB Output is correct
10 Correct 35 ms 12500 KB Output is correct
11 Correct 34 ms 12504 KB Output is correct
12 Correct 35 ms 13012 KB Output is correct
13 Correct 36 ms 12640 KB Output is correct
14 Correct 349 ms 70740 KB Output is correct
15 Correct 36 ms 12648 KB Output is correct
16 Correct 329 ms 69956 KB Output is correct
17 Correct 309 ms 70404 KB Output is correct
18 Correct 1 ms 2392 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 4 ms 3164 KB Output is correct
3 Correct 5 ms 3164 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 2 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 4 ms 3164 KB Output is correct
17 Correct 35 ms 12708 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2392 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2508 KB Output is correct
23 Correct 1 ms 2400 KB Output is correct
24 Correct 1 ms 2400 KB Output is correct
25 Correct 1 ms 2404 KB Output is correct
26 Correct 1 ms 2528 KB Output is correct
27 Correct 1 ms 2404 KB Output is correct
28 Correct 223 ms 59624 KB Output is correct
29 Correct 1 ms 2404 KB Output is correct
30 Correct 322 ms 71008 KB Output is correct
31 Correct 313 ms 70628 KB Output is correct
32 Correct 303 ms 70996 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 324 ms 71752 KB Output is correct
35 Correct 320 ms 71516 KB Output is correct
36 Correct 309 ms 70620 KB Output is correct
37 Correct 336 ms 71652 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 31 ms 12660 KB Output is correct
40 Correct 44 ms 12496 KB Output is correct
41 Correct 30 ms 12524 KB Output is correct
42 Correct 32 ms 12496 KB Output is correct
43 Correct 32 ms 12904 KB Output is correct
44 Correct 33 ms 12492 KB Output is correct
45 Correct 31 ms 12496 KB Output is correct
46 Correct 37 ms 12492 KB Output is correct
47 Correct 35 ms 12516 KB Output is correct
48 Correct 36 ms 12656 KB Output is correct
49 Correct 34 ms 12496 KB Output is correct
50 Correct 33 ms 12652 KB Output is correct
51 Correct 327 ms 70216 KB Output is correct
52 Correct 309 ms 71104 KB Output is correct
53 Correct 350 ms 70372 KB Output is correct
54 Correct 35 ms 12496 KB Output is correct
55 Correct 31 ms 12632 KB Output is correct
56 Correct 92 ms 33368 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 35 ms 12652 KB Output is correct
59 Correct 35 ms 12660 KB Output is correct
60 Correct 359 ms 70884 KB Output is correct
61 Correct 35 ms 12644 KB Output is correct
62 Correct 43 ms 12680 KB Output is correct
63 Correct 33 ms 12492 KB Output is correct
64 Correct 34 ms 12548 KB Output is correct
65 Correct 35 ms 12496 KB Output is correct
66 Correct 35 ms 12500 KB Output is correct
67 Correct 34 ms 12504 KB Output is correct
68 Correct 35 ms 13012 KB Output is correct
69 Correct 36 ms 12640 KB Output is correct
70 Correct 349 ms 70740 KB Output is correct
71 Correct 36 ms 12648 KB Output is correct
72 Correct 329 ms 69956 KB Output is correct
73 Correct 309 ms 70404 KB Output is correct
74 Correct 1 ms 2392 KB Output is correct
75 Correct 1 ms 2396 KB Output is correct
76 Correct 1 ms 2396 KB Output is correct
77 Correct 1 ms 2396 KB Output is correct
78 Correct 0 ms 2396 KB Output is correct
79 Correct 4 ms 3160 KB Output is correct
80 Correct 364 ms 71312 KB Output is correct
81 Correct 375 ms 70592 KB Output is correct
82 Correct 358 ms 70732 KB Output is correct
83 Correct 346 ms 71104 KB Output is correct
84 Correct 348 ms 71236 KB Output is correct
85 Correct 347 ms 70264 KB Output is correct
86 Correct 95 ms 32600 KB Output is correct
87 Correct 1 ms 2396 KB Output is correct