oj.uz

Submission #781568

# Submission time Handle Problem Language Result Execution time Memory
781568 2023-07-13T08:10:43 Z Dan4Life Fish 2 (JOI22_fish2) C++17
0 / 100
 10 ms 2424 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long 
int n, q, a[100010], pr[100010];
using ar = array<int,2>;

int32_t main()
{
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	for(int i = 1; i <= n; i++) cin >> a[i];
	cin >> q;
	while(q--){
		int t, l, r; cin >> t >> l >> r;
		if(t==1) a[l]=r;
		else{
			stack<ar> S; int sum = 0, ind;
			for(int i = l; i <= r; i++)pr[i]=0;
			for(int i = l; i <= r; i++){
				sum = 0, ind = -1;
				while(!S.empty() and a[S.top()[1]] < a[i]) 
					sum+=S.top()[0]+a[S.top()[1]], S.pop();
				if(sum<a[i]) ind=S.empty()?l:S.top()[1]+1;
				if(ind!=-1 and ind<i) pr[ind]++, pr[i]--;
				S.push({sum,i});
			}
			S = stack<ar>();
			for(int i = r; i >= l; i--){
				sum = 0, ind = -1;
				while(!S.empty() and a[S.top()[1]] < a[i]) 
					sum+=S.top()[0]+a[S.top()[1]], S.pop();
				if(sum<a[i]) ind=S.empty()?n:S.top()[1];
				if(ind!=-1 and i+1<ind) pr[i+1]++, pr[ind]--;
				S.push({sum,i});
			}
			int ans = 0, xd=0;
			for(int i = l; i <= r; i++)
				xd+=pr[i],ans+=!xd;
			cout << ans << "\n";
		}
	}
}

Subtask #1
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 0 ms 212 KB Output is correct
4 Incorrect 1 ms 324 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 10 ms 2424 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# 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 0 ms 212 KB Output is correct
4 Incorrect 1 ms 324 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 10 ms 2424 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 10 ms 2424 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 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 0 ms 212 KB Output is correct
4 Incorrect 1 ms 324 KB Output isn't correct
5 Halted 0 ms 0 KB -