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Submission #649785

# Submission time Handle Problem Language Result Execution time Memory
649785 2022-10-11T10:54:00 Z ToroTN Strange Device (APIO19_strange_device) C++14
65 / 100
 531 ms 17008 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,di;
set<pair<ll,ll> > s;
vector<pair<ll,ll> > v;
ll gcdprajao(ll a,ll b)
{
    if(b==0)return a;
    return gcdprajao(b,a%b);
}
int main()
{
    scanf("%lld%lld%lld",&n,&a,&b);
    di=a/gcdprajao(b+1,a);
    if(di>(1e18+1)/b)
    {
        md=1e18+1;
    }else
    {
        md=di*b;
    }
    //printf("%lld\n",md);
    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:42:18: 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]
   42 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
strange_device.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |     scanf("%lld%lld%lld",&n,&a,&b);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:29:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |         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 5 ms 640 KB Output is correct
3 Correct 6 ms 596 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 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 212 KB Output is correct
16 Correct 6 ms 596 KB Output is correct
17 Correct 45 ms 2452 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 0 ms 212 KB Output is correct
2 Incorrect 0 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 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 303 ms 16804 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 425 ms 16884 KB Output is correct
3 Correct 403 ms 16788 KB Output is correct
4 Correct 408 ms 16800 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 425 ms 16884 KB Output is correct
3 Correct 403 ms 16788 KB Output is correct
4 Correct 408 ms 16800 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 406 ms 16736 KB Output is correct
7 Correct 415 ms 16840 KB Output is correct
8 Correct 397 ms 16752 KB Output is correct
9 Correct 421 ms 16828 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 425 ms 16884 KB Output is correct
3 Correct 403 ms 16788 KB Output is correct
4 Correct 408 ms 16800 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 52 ms 2476 KB Output is correct
7 Correct 46 ms 2376 KB Output is correct
8 Correct 39 ms 2416 KB Output is correct
9 Correct 39 ms 2424 KB Output is correct
10 Correct 40 ms 2368 KB Output is correct
11 Correct 44 ms 2460 KB Output is correct
12 Correct 39 ms 2484 KB Output is correct
13 Correct 41 ms 2432 KB Output is correct
14 Correct 49 ms 2480 KB Output is correct
15 Correct 46 ms 2368 KB Output is correct
16 Correct 41 ms 2352 KB Output is correct
17 Correct 43 ms 2468 KB Output is correct
18 Correct 417 ms 17008 KB Output is correct
19 Correct 387 ms 16808 KB Output is correct
20 Correct 470 ms 16772 KB Output is correct
21 Correct 46 ms 2444 KB Output is correct
22 Correct 45 ms 2376 KB Output is correct
23 Correct 158 ms 8552 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 43 ms 2368 KB Output is correct
3 Correct 43 ms 2400 KB Output is correct
4 Correct 522 ms 16732 KB Output is correct
5 Correct 45 ms 2424 KB Output is correct
6 Correct 50 ms 2428 KB Output is correct
7 Correct 58 ms 2456 KB Output is correct
8 Correct 46 ms 2444 KB Output is correct
9 Correct 47 ms 2408 KB Output is correct
10 Correct 43 ms 2368 KB Output is correct
11 Correct 43 ms 2376 KB Output is correct
12 Correct 37 ms 2368 KB Output is correct
13 Correct 40 ms 2368 KB Output is correct
14 Correct 531 ms 16828 KB Output is correct
15 Correct 43 ms 2376 KB Output is correct
16 Correct 430 ms 16832 KB Output is correct
17 Correct 479 ms 16892 KB Output is correct
18 Correct 1 ms 256 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 5 ms 640 KB Output is correct
3 Correct 6 ms 596 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 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 212 KB Output is correct
16 Correct 6 ms 596 KB Output is correct
17 Correct 45 ms 2452 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Incorrect 0 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -