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Submission #243950

# Submission time Handle Problem Language Result Execution time Memory
243950 2020-07-02T11:00:17 Z uacoder123 Strange Device (APIO19_strange_device) C++14
100 / 100
 630 ms 53620 KB 
#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define FOR(i,a,b) for (auto i = (a); i <= (b); ++i)
#define NFOR(i,a,b) for(auto i = (a); i >= (b); --i)
#define all(x) (x).begin(), (x).end()
#define sz(x) int(x.size())
#define mp(i,a) make_pair(i,a)
#define pb(a) push_back(a)
#define bit(x,b) (x&(1LL<<b))
 
typedef long long int lli;
typedef pair <lli,lli> ii;
typedef pair <lli,ii> iii;
typedef vector <lli> vi;
 
int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  lli test=1;
  for(;test>0;--test)
  {
    lli n,a,b,g,p,f,s,cl,cr,ans=0,ch=1;
    cin>>n>>a>>b;
    g=__gcd(a,b+1);
    g=a/g;
    if(1.0*g*b>1000000000000000000)
      p=1000000000500000000;
    else
      p=g*b;
    vector<ii> v;
    for(lli i=0;i<n;++i)
    {
      cin>>f>>s;
      if(s-f+1>=p)
      {
        ch=0;
      }
      f%=p;
      s%=p;
      if(f<=s)
        v.pb(mp(f,s));
      else
      {
        v.pb(mp(0,s));
        v.pb(mp(f,p-1));
      }
    }
    if(ch==0)
    {
      cout<<p<<endl;
      exit(0);
    }
    sort(all(v));
    v.pb(mp(p,p));
    cl=0;
    cr=-1;
    ans=0;
    for(lli i=0;i<v.size();++i)
    {
      if(v[i].F<=cr)
      {
        if(v[i].S>=cr)
        cr=v[i].S;
      }
      else
      {
        ans+=cr-cl+1;
        cl=v[i].F;
        cr=v[i].S;
      }
    }
    cout<<ans<<endl;
  }
  return(0);
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:61:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(lli i=0;i<v.size();++i)
                 ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 10 ms 1152 KB Output is correct
3 Correct 10 ms 1024 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 10 ms 1152 KB Output is correct
17 Correct 62 ms 5740 KB Output is correct
18 Correct 4 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 378 ms 22484 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 520 ms 35880 KB Output is correct
3 Correct 527 ms 53260 KB Output is correct
4 Correct 518 ms 53440 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 520 ms 35880 KB Output is correct
3 Correct 527 ms 53260 KB Output is correct
4 Correct 518 ms 53440 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 519 ms 53440 KB Output is correct
7 Correct 530 ms 53300 KB Output is correct
8 Correct 540 ms 53336 KB Output is correct
9 Correct 589 ms 53620 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 520 ms 35880 KB Output is correct
3 Correct 527 ms 53260 KB Output is correct
4 Correct 518 ms 53440 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 54 ms 5740 KB Output is correct
7 Correct 58 ms 5736 KB Output is correct
8 Correct 56 ms 5736 KB Output is correct
9 Correct 55 ms 5868 KB Output is correct
10 Correct 53 ms 5740 KB Output is correct
11 Correct 58 ms 5736 KB Output is correct
12 Correct 55 ms 5736 KB Output is correct
13 Correct 59 ms 5740 KB Output is correct
14 Correct 59 ms 5740 KB Output is correct
15 Correct 62 ms 5740 KB Output is correct
16 Correct 59 ms 5740 KB Output is correct
17 Correct 56 ms 5736 KB Output is correct
18 Correct 535 ms 53396 KB Output is correct
19 Correct 520 ms 53184 KB Output is correct
20 Correct 592 ms 53316 KB Output is correct
21 Correct 62 ms 5736 KB Output is correct
22 Correct 54 ms 5760 KB Output is correct
23 Correct 177 ms 18700 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 59 ms 5740 KB Output is correct
3 Correct 60 ms 5740 KB Output is correct
4 Correct 630 ms 24920 KB Output is correct
5 Correct 58 ms 5740 KB Output is correct
6 Correct 58 ms 5740 KB Output is correct
7 Correct 59 ms 5740 KB Output is correct
8 Correct 63 ms 5736 KB Output is correct
9 Correct 62 ms 5732 KB Output is correct
10 Correct 62 ms 5736 KB Output is correct
11 Correct 62 ms 5740 KB Output is correct
12 Correct 53 ms 5740 KB Output is correct
13 Correct 61 ms 5740 KB Output is correct
14 Correct 582 ms 24788 KB Output is correct
15 Correct 59 ms 5768 KB Output is correct
16 Correct 533 ms 53360 KB Output is correct
17 Correct 525 ms 53440 KB Output is correct
18 Correct 4 ms 384 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 10 ms 1152 KB Output is correct
3 Correct 10 ms 1024 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 512 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 10 ms 1152 KB Output is correct
17 Correct 62 ms 5740 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 378 ms 22484 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 520 ms 35880 KB Output is correct
31 Correct 527 ms 53260 KB Output is correct
32 Correct 518 ms 53440 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 519 ms 53440 KB Output is correct
35 Correct 530 ms 53300 KB Output is correct
36 Correct 540 ms 53336 KB Output is correct
37 Correct 589 ms 53620 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 54 ms 5740 KB Output is correct
40 Correct 58 ms 5736 KB Output is correct
41 Correct 56 ms 5736 KB Output is correct
42 Correct 55 ms 5868 KB Output is correct
43 Correct 53 ms 5740 KB Output is correct
44 Correct 58 ms 5736 KB Output is correct
45 Correct 55 ms 5736 KB Output is correct
46 Correct 59 ms 5740 KB Output is correct
47 Correct 59 ms 5740 KB Output is correct
48 Correct 62 ms 5740 KB Output is correct
49 Correct 59 ms 5740 KB Output is correct
50 Correct 56 ms 5736 KB Output is correct
51 Correct 535 ms 53396 KB Output is correct
52 Correct 520 ms 53184 KB Output is correct
53 Correct 592 ms 53316 KB Output is correct
54 Correct 62 ms 5736 KB Output is correct
55 Correct 54 ms 5760 KB Output is correct
56 Correct 177 ms 18700 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 59 ms 5740 KB Output is correct
59 Correct 60 ms 5740 KB Output is correct
60 Correct 630 ms 24920 KB Output is correct
61 Correct 58 ms 5740 KB Output is correct
62 Correct 58 ms 5740 KB Output is correct
63 Correct 59 ms 5740 KB Output is correct
64 Correct 63 ms 5736 KB Output is correct
65 Correct 62 ms 5732 KB Output is correct
66 Correct 62 ms 5736 KB Output is correct
67 Correct 62 ms 5740 KB Output is correct
68 Correct 53 ms 5740 KB Output is correct
69 Correct 61 ms 5740 KB Output is correct
70 Correct 582 ms 24788 KB Output is correct
71 Correct 59 ms 5768 KB Output is correct
72 Correct 533 ms 53360 KB Output is correct
73 Correct 525 ms 53440 KB Output is correct
74 Correct 4 ms 384 KB Output is correct
75 Correct 5 ms 384 KB Output is correct
76 Correct 5 ms 384 KB Output is correct
77 Correct 4 ms 384 KB Output is correct
78 Correct 4 ms 384 KB Output is correct
79 Correct 14 ms 1048 KB Output is correct
80 Correct 600 ms 36044 KB Output is correct
81 Correct 610 ms 36080 KB Output is correct
82 Correct 584 ms 36184 KB Output is correct
83 Correct 581 ms 22496 KB Output is correct
84 Correct 566 ms 22484 KB Output is correct
85 Correct 582 ms 36032 KB Output is correct
86 Correct 169 ms 18528 KB Output is correct
87 Correct 5 ms 384 KB Output is correct