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Submission #713520

# Submission time Handle Problem Language Result Execution time Memory
713520 2023-03-22T11:26:35 Z bin9638 Strange Device (APIO19_strange_device) C++17
35 / 100
 711 ms 51704 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define N 2000010
#define ii pair<int,int>
#define fs first
#define sc second
#define ld double
#define int ll

const int MAX_VAL=2e18;

int S,cnt[N],n,A,B,dem=0,ans=0;
vector<int>s;

void sub_AB()
{
    int res=0;
    for(int i=1;i<=n;i++)
    {
        int l,r;
        cin>>l>>r;
        res+=(r-l+1);
    }
    cout<<res;
    exit(0);
}

ii a[N];

int32_t main()
{
    #ifdef SKY
    freopen("A.inp","r",stdin);
    freopen("A.out","w",stdout);
    #endif // SKY
    ios::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n>>A>>B;
    S=B*(A/__gcd(A,B+1));
    for(int i=1;i<=n;i++)
    {
        int l,r;
        cin>>l>>r;
        if(r-l+1>=S)
        {
            cout<<S;
            return 0;
        }
        int lef=l%S,righ=r%S;
        if(lef<=righ)
        {
            a[++dem]={lef,righ};
        }else
        {
            a[++dem]={lef,S-1};
            a[++dem]={0,righ};
        }
    }
    for(int i=1;i<=dem;i++)
    {
        s.pb(a[i].fs);
        s.pb(a[i].sc+1);
    }
    sort(s.begin(),s.end());
    s.erase(unique(s.begin(),s.end()),s.end());
    for(int i=1;i<=dem;i++)
    {
        cnt[lower_bound(s.begin(),s.end(),a[i].fs)-s.begin()]++;
        cnt[lower_bound(s.begin(),s.end(),a[i].sc+1)-s.begin()]--;
    }
    for(int i=0;i<s.size()-1;i++)
    {
        if(i>0)
            cnt[i]+=cnt[i-1];
        if(cnt[i]>0)
            ans+=(s[i+1]-s[i]);
    }
    cout<<ans;
    return 0;
}

Compilation message

strange_device.cpp: In function 'int32_t main()':
strange_device.cpp:76:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |     for(int i=0;i<s.size()-1;i++)
      |                 ~^~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 6 ms 796 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 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 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 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 868 KB Output is correct
17 Correct 61 ms 4324 KB Output is correct
18 Incorrect 0 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #2
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 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB Output isn't correct
6 Halted 0 ms 0 KB -

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 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 285 ms 32468 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 519 ms 39556 KB Output is correct
3 Correct 548 ms 39612 KB Output is correct
4 Correct 549 ms 51704 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 519 ms 39556 KB Output is correct
3 Correct 548 ms 39612 KB Output is correct
4 Correct 549 ms 51704 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 568 ms 51592 KB Output is correct
7 Correct 570 ms 51700 KB Output is correct
8 Correct 589 ms 51608 KB Output is correct
9 Correct 649 ms 51676 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 519 ms 39556 KB Output is correct
3 Correct 548 ms 39612 KB Output is correct
4 Correct 549 ms 51704 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 66 ms 8088 KB Output is correct
7 Correct 59 ms 8004 KB Output is correct
8 Correct 55 ms 7996 KB Output is correct
9 Correct 74 ms 8084 KB Output is correct
10 Correct 56 ms 8092 KB Output is correct
11 Correct 59 ms 8040 KB Output is correct
12 Correct 58 ms 7988 KB Output is correct
13 Correct 62 ms 7984 KB Output is correct
14 Correct 54 ms 8136 KB Output is correct
15 Correct 78 ms 7964 KB Output is correct
16 Correct 68 ms 8080 KB Output is correct
17 Correct 67 ms 8064 KB Output is correct
18 Correct 598 ms 51632 KB Output is correct
19 Correct 586 ms 51700 KB Output is correct
20 Correct 642 ms 51676 KB Output is correct
21 Correct 77 ms 8020 KB Output is correct
22 Correct 51 ms 8064 KB Output is correct
23 Correct 144 ms 26548 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 61 ms 4360 KB Output is correct
3 Correct 58 ms 4360 KB Output is correct
4 Correct 711 ms 39592 KB Output is correct
5 Correct 65 ms 4332 KB Output is correct
6 Correct 59 ms 4360 KB Output is correct
7 Correct 61 ms 4364 KB Output is correct
8 Correct 65 ms 4312 KB Output is correct
9 Correct 62 ms 4360 KB Output is correct
10 Correct 66 ms 4368 KB Output is correct
11 Correct 63 ms 4280 KB Output is correct
12 Correct 58 ms 4412 KB Output is correct
13 Correct 63 ms 4360 KB Output is correct
14 Correct 650 ms 39628 KB Output is correct
15 Correct 78 ms 4360 KB Output is correct
16 Correct 576 ms 51664 KB Output is correct
17 Correct 535 ms 51660 KB Output is correct
18 Incorrect 0 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 6 ms 796 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 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 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 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 6 ms 868 KB Output is correct
17 Correct 61 ms 4324 KB Output is correct
18 Incorrect 0 ms 212 KB Output isn't correct
19 Halted 0 ms 0 KB -