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Submission #870856

# Submission time Handle Problem Language Result Execution time Memory
870856 2023-11-09T10:09:37 Z pcc Discharging (NOI20_discharging) C++14
0 / 100
 72 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define pii pair<int,int>
#define fs first
#define sc second
#define tlll tuple<ll,ll,ll>


vector<pll> v;
vector<pll> st;
int n;
ll total = 0;
ll sum = 0;

inline bool check(pll a,pll b){
	ll ta = a.fs*(sum-b.sc)+b.fs*sum;
	ll tb = a.fs*sum;
	if(ta>tb)return true;
	else return false;
}

int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	for(int i = 0;i<n;i++){
		int k;
		cin>>k;
		if(v.empty()||v.back().fs < k)v.push_back({k,1});
		else v.back().sc++;
	}
	reverse(v.begin(),v.end());
	for(auto &i:v){
		sum += i.sc;
		while(!st.empty()&&check(st.back(),i)){
			total -= st.back().fs*(sum-i.sc);
			i.sc += st.back().sc;
			i.fs = st.back().fs;
			st.pop_back();
		}
		total += sum*i.fs;
		st.push_back(i);
	}
	for(auto &i:st)cout<<i.fs<<' '<<i.sc<<endl;
	cout<<total;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 72 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 28.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -