oj.uz

Submission #781563

# Submission time Handle Problem Language Result Execution time Memory
781563 2023-07-13T08:03:36 Z devariaota Strange Device (APIO19_strange_device) C++17
0 / 100
 501 ms 118988 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,a,b;
ll l[1000005],r[1000005];
ll gcd(ll a, ll b){
    if (b==0) return a;
    return gcd(b,a%b);
}
ll lcm (ll a, ll b){
    return a/gcd(a,b)*b;
}
int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>n>>a>>b;
    ll t;
    ll x;
    if ((b+1)%a==0){
        t=b;
    }
    else{
        t=a*b;
    }
    // cout<<t;
    // t=lcm(t,b);
    set <pair<ll,ll>> st;
    for (int i=1;i<=n;i++){
        cin>>l[i]>>r[i];
        ll u=r[i]-l[i]+1;
        if (u>=t){
            l[i]=1;
            r[i]=t;
        }
        else{
            ll q=r[i]-l[i];
            ll p=l[i]%t;
            l[i]=p;
            r[i]=l[i]+q;
        }
        st.insert({l[i],r[i]});
        // cout<<l[i]<<" "<<r[i]<<endl;
    }
    vector <pair<ll,ll>> pasang;
    for (auto z:st){
        pasang.push_back(z);
        // cout<<z.first<<" "<<z.second<<endl;
    }
    // sort(pasang+1,pasang+n+1);
    vector <pair<ll,ll>> jawab;
    ll last=pasang[0].second,previous=pasang[0].first;
    pasang.push_back({(ll)1e18+100,(ll)1e18+100});
    for (int i=1;i<=n;i++){
        if (pasang[i].first<=last){
            last=pasang[i].second;
        }
        else{
            jawab.push_back({previous,last});
            previous=pasang[i].first;
            last=pasang[i].second;
        }
    }
    // if (previous>jawab[jawab.size()-1].second){
    //     // jawab.push_back({previous,last});
    // }
    ll ans=0;
    for (int i=0;i<jawab.size();i++){
        ans+=jawab[i].second-jawab[i].first+1;
    }
    cout<<"  "<<ans;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:66:19: 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]
   66 |     for (int i=0;i<jawab.size();i++){
      |                  ~^~~~~~~~~~~~~
strange_device.cpp:17:8: warning: unused variable 'x' [-Wunused-variable]
   17 |     ll x;
      |        ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 7 ms 1648 KB Output isn't correct
3 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 0 ms 212 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 1 ms 340 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 458 ms 118840 KB Output is correct
3 Incorrect 494 ms 118988 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 458 ms 118840 KB Output is correct
3 Incorrect 494 ms 118988 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 458 ms 118840 KB Output is correct
3 Incorrect 494 ms 118988 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 47 ms 12780 KB Output is correct
3 Correct 50 ms 12708 KB Output is correct
4 Correct 501 ms 118860 KB Output is correct
5 Correct 51 ms 12708 KB Output is correct
6 Correct 59 ms 12732 KB Output is correct
7 Correct 62 ms 12696 KB Output is correct
8 Correct 47 ms 12816 KB Output is correct
9 Correct 53 ms 12724 KB Output is correct
10 Correct 45 ms 12788 KB Output is correct
11 Correct 45 ms 12808 KB Output is correct
12 Correct 45 ms 12752 KB Output is correct
13 Correct 47 ms 12732 KB Output is correct
14 Incorrect 490 ms 118868 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 7 ms 1648 KB Output isn't correct
3 Halted 0 ms 0 KB -