oj.uz

Submission #649763

# Submission time Handle Problem Language Result Execution time Memory
649763 2022-10-11T10:34:42 Z ToroTN Strange Device (APIO19_strange_device) C++14
65 / 100
 516 ms 24524 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define X first
#define Y second
#define pb push_back
ll n,a,b,x,y,md,cnt=0,mx=-1,l,r;
set<pair<ll,ll> > s;
vector<pair<ll,ll> > v;
int main()
{
    scanf("%lld%lld%lld",&n,&a,&b);
    /*for(int i=1;i<=100;i++)
    {
        printf("%d %d %d\n",i,(i+i/b)%a,i%b);
    }*/
    //printf("%d\n",s.size());
    md=b*a/__gcd(b+1,a);
    for(int i=1;i<=n;i++)
    {
        scanf("%lld%lld",&x,&y);
        x%=md;
        y%=md;
        if(x<=y)
        {
            v.pb({x,y});
        }else
        {
            v.pb({x,md-1});
            v.pb({0,y});
        }
    }
    sort(v.begin(),v.end());
    for(int i=0;i<v.size();i++)
    {
        l=v[i].X;
        r=v[i].Y;
        if(l>mx)
        {
            cnt+=(r-l+1);
            mx=r;
        }else
        {
            if(r>mx)
            {
                cnt+=r-mx;
                mx=r;
            }
        }
    }
    printf("%lld\n",cnt);
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:34:18: 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]
   34 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
strange_device.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%lld%lld%lld",&n,&a,&b);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |         scanf("%lld%lld",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 948 KB Output is correct
3 Correct 5 ms 948 KB Output is correct
4 Correct 1 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 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 1032 KB Output is correct
17 Correct 50 ms 5568 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 319 ms 17048 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 444 ms 16804 KB Output is correct
3 Correct 458 ms 24484 KB Output is correct
4 Correct 419 ms 23968 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 444 ms 16804 KB Output is correct
3 Correct 458 ms 24484 KB Output is correct
4 Correct 419 ms 23968 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 421 ms 23964 KB Output is correct
7 Correct 437 ms 23548 KB Output is correct
8 Correct 435 ms 24020 KB Output is correct
9 Correct 486 ms 24064 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 444 ms 16804 KB Output is correct
3 Correct 458 ms 24484 KB Output is correct
4 Correct 419 ms 23968 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 48 ms 5736 KB Output is correct
7 Correct 52 ms 5648 KB Output is correct
8 Correct 45 ms 5648 KB Output is correct
9 Correct 43 ms 5692 KB Output is correct
10 Correct 49 ms 5592 KB Output is correct
11 Correct 46 ms 5676 KB Output is correct
12 Correct 42 ms 5700 KB Output is correct
13 Correct 45 ms 5644 KB Output is correct
14 Correct 43 ms 5616 KB Output is correct
15 Correct 48 ms 5584 KB Output is correct
16 Correct 46 ms 5624 KB Output is correct
17 Correct 48 ms 5644 KB Output is correct
18 Correct 438 ms 24524 KB Output is correct
19 Correct 423 ms 24516 KB Output is correct
20 Correct 490 ms 24460 KB Output is correct
21 Correct 48 ms 5700 KB Output is correct
22 Correct 42 ms 5664 KB Output is correct
23 Correct 146 ms 14508 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 5692 KB Output is correct
3 Correct 52 ms 5592 KB Output is correct
4 Correct 516 ms 24404 KB Output is correct
5 Correct 46 ms 5692 KB Output is correct
6 Correct 49 ms 5676 KB Output is correct
7 Correct 46 ms 5664 KB Output is correct
8 Correct 49 ms 5692 KB Output is correct
9 Correct 48 ms 5728 KB Output is correct
10 Correct 49 ms 5624 KB Output is correct
11 Correct 52 ms 5564 KB Output is correct
12 Correct 44 ms 5660 KB Output is correct
13 Correct 50 ms 5688 KB Output is correct
14 Correct 475 ms 24336 KB Output is correct
15 Correct 47 ms 5608 KB Output is correct
16 Correct 424 ms 23972 KB Output is correct
17 Correct 414 ms 24488 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 6 ms 948 KB Output is correct
3 Correct 5 ms 948 KB Output is correct
4 Correct 1 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 1 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 304 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 296 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 1032 KB Output is correct
17 Correct 50 ms 5568 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Incorrect 1 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -