Submission #1067421

#	Time	Username	Problem	Language	Result	Execution time	Memory
1067421		vjudge1	Money (IZhO17_money)	C++17	Compilation error	0 ms	0 KiB

money

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=1e6+5;
const ll inf=2e18;
int n,a[maxN+1],pre[maxN+1];
set<ll> se;
int main()
{
    //freopen("","r",stdin);
    //freopen("","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        pre[i]=-1;
    }
    int pos=-1;
    se.insert(inf);
    se.insert(a[1]);
    for(int i=2;i<=n;i++)
    {
        if(a[i]<a[i-1])
        {
            pos=i;
            break;
        }
        else se.insert(a[i]);
    }
    int cnt=1;
    if(pos==-1)
    {
        cout<<cnt;
        return 0;
    }
    cnt++;
    auto itr=se.upper_bound(a[pos]);
    int i=pos+1;
    ll base=(*itr);
    se.insert(a[pos]);
    while(i<=n)
    {
        while(i<=n&&a[i]>=a[i-1]&&(*se.lower_bound(a[i]))<=base)
        {
            se.insert(a[i]);
            i++;
        }
        //cout<<i<<" "<<cnt<<" "<<base<<'\n';
        if(i<=n)
        {
            cnt++;
            base=(*se.upper_bound(a[i]));
            se.insert(a[i]);
            //cout<<i<<" "<<(*se.upper_bound(a[i]))<<'\n';
            i++;
        }
    }
    cout<<cnt;
}
/*20
324662 468027 324662 324662 468027 324662 468027 324662 324662 468027 963343 944165 165047 127072 405908 918630 854332 571550 909067 448963*/
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=1e6+5;
const ll inf=2e18;
int n,a[maxN+1],pre[maxN+1];
set<ll> se;
int main()
{
    //freopen("","r",stdin);
    //freopen("","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        pre[i]=-1;
    }
    int pos=-1;
    se.insert(inf);
    se.insert(a[1]);
    for(int i=2;i<=n;i++)
    {
        if(a[i]<a[i-1])
        {
            pos=i;
            break;
        }
        else se.insert(a[i]);
    }
    int cnt=1;
    if(pos==-1)
    {
        cout<<cnt;
        return 0;
    }
    cnt++;
    auto itr=se.upper_bound(a[pos]);
    int i=pos+1;
    ll base=(*itr);
    se.insert(a[pos]);
    while(i<=n)
    {
        while(i<=n&&a[i]>=a[i-1]&&(*se.lower_bound(a[i]))<=base)
        {
            se.insert(a[i]);
            i++;
        }
        //cout<<i<<" "<<cnt<<" "<<base<<'\n';
        if(i<=n)
        {
            cnt++;
            base=(*se.upper_bound(a[i]));
            se.insert(a[i]);
            //cout<<i<<" "<<(*se.upper_bound(a[i]))<<'\n';
            i++;
        }
    }
    cout<<cnt;
}
/*20
324662 468027 324662 324662 468027 324662 468027 324662 324662 468027 963343 944165 165047 127072 405908 918630 854332 571550 909067 448963*/

Compilation message (stderr)

money.cpp:78:11: error: redefinition of 'const int maxN'
   78 | const int maxN=1e6+5;
      |           ^~~~
money.cpp:9:11: note: 'const int maxN' previously defined here
    9 | const int maxN=1e6+5;
      |           ^~~~
money.cpp:79:10: error: redefinition of 'const long long int inf'
   79 | const ll inf=2e18;
      |          ^~~
money.cpp:10:10: note: 'const long long int inf' previously defined here
   10 | const ll inf=2e18;
      |          ^~~
money.cpp:80:5: error: redefinition of 'int n'
   80 | int n,a[maxN+1],pre[maxN+1];
      |     ^
money.cpp:11:5: note: 'int n' previously declared here
   11 | int n,a[maxN+1],pre[maxN+1];
      |     ^
money.cpp:80:7: error: redefinition of 'int a [1000006]'
   80 | int n,a[maxN+1],pre[maxN+1];
      |       ^
money.cpp:11:7: note: 'int a [1000006]' previously declared here
   11 | int n,a[maxN+1],pre[maxN+1];
      |       ^
money.cpp:80:17: error: redefinition of 'int pre [1000006]'
   80 | int n,a[maxN+1],pre[maxN+1];
      |                 ^~~
money.cpp:11:17: note: 'int pre [1000006]' previously declared here
   11 | int n,a[maxN+1],pre[maxN+1];
      |                 ^~~
money.cpp:77:12: error: redefinition of 'std::set<long long int> second'
   77 | #define se second
      |            ^~~~~~
money.cpp:81:9: note: in expansion of macro 'se'
   81 | set<ll> se;
      |         ^~
money.cpp:8:12: note: 'std::set<long long int> second' previously declared here
    8 | #define se second
      |            ^~~~~~
money.cpp:12:9: note: in expansion of macro 'se'
   12 | set<ll> se;
      |         ^~
money.cpp:82:5: error: redefinition of 'int main()'
   82 | int main()
      |     ^~~~
money.cpp:13:5: note: 'int main()' previously defined here
   13 | int main()
      |     ^~~~