Submission #416300

#	Time	Username	Problem	Language	Result	Execution time	Memory
416300		Runtime_error_	Money (IZhO17_money)	C++14	100 / 100	1374 ms	51400 KiB

money

#include <bits/stdc++.h>
using namespace std;
const int inf = 1e6+9;
int n,ans,a[inf];
set<int> s;

int main(){
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%d",a+i);

    int pt = 1;
    while(pt <= n){

        int mn = inf,mx = 0,i,pre = 0;
        for(i=pt;i<=n;i++){
            if(a[i] < pre)
                break;
            mn = min(mn,a[i]);
            mx = max(mx,a[i]);
            pre = a[i];
            if(s.empty() || *s.begin() >= mx || *s.rbegin() <= mn || *s.upper_bound(mn) >= mx)
                continue;
            break;
        }
        ans++;
        for(int j=pt;j<i;j++)
            s.insert(a[j]);
        pt = i;
    }
    printf("%d\n",ans);
}
/*
4
1 4 2 5
6
3 6 4 5 1 2
*/

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
money.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d",a+i);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 20 / 20
• Subtask 4: 55 / 55