oj.uz

Submission #713514

# Submission time Handle Problem Language Result Execution time Memory
713514 2023-03-22T10:55:44 Z bin9638 Strange Device (APIO19_strange_device) C++17
0 / 100
 328 ms 32248 KB 
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define N 4000010
#define ii pair<int,int>
#define fs first
#define sc second
#define ld double
#define int ll

const int MAX_VAL=2e18;

int 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;
    if(MAX_VAL/A<=B)
        sub_AB();
    for(int i=1;i<=n;i++)
    {
        int l,r;
        cin>>l>>r;
        if(r-l+1>=A*B)
        {
            cout<<A*B;
            return 0;
        }
        int lef=l%(A*B),righ=r%(A*B);
        if(lef<=righ)
        {
            a[++dem]={lef,righ};
        }else
        {
            a[++dem]={lef,A*B-1};
            a[++dem]={0,righ};
        }
    }
   assert(0);
    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:78:18: 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]
   78 |     for(int i=0;i<s.size()-1;i++)
      |                 ~^~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 5 ms 852 KB Execution killed with signal 6
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 Runtime error 2 ms 468 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 2 ms 468 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 328 ms 32248 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 328 ms 32248 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 328 ms 32248 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 37 ms 3660 KB Execution killed with signal 6
3 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 Runtime error 5 ms 852 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -