oj.uz

Submission #198058

# Submission time Handle Problem Language Result Execution time Memory
198058 2020-01-24T15:04:57 Z dndhk Editor (BOI15_edi) C++14
35 / 100
 3000 ms 11712 KB 
#include <bits/stdc++.h>

#define pb push_back

using namespace std;

const int MAX_N = 300000;

typedef pair<int, int> pii;

vector<pii> vt;
int prv[MAX_N+1];
int N;
vector<pii> v;

int num[MAX_N+1];
int chk[MAX_N+1];
int frt[MAX_N+1];

priority_queue<int> pq1, pq2;

vector<int> vc;

int main(){
	scanf("%d", &N);
	for(int i=1; i<=N; i++){
		int x;
		scanf("%d", &x);
		if(x>0){
			vt.pb({1, x});
		}else{
			vt.pb({2, -x});
			prv[i-1] = -1;
		}
		frt[i-1] = N+1;
	}
	for(int i=N-1; i>=0; i--){
		if(vt[i].first==2 && prv[i]==-1){
			v.pb({i, vt[i].second});
			vc.pb(i);
			for(int j=i-1; j>=0; j--){
				if(vt[j].first==2){
					if(v.back().second>vt[j].second){
						prv[v.back().first] = j;
						v.pop_back();
					}else{
						if(prv[j]!=-1){
							j = prv[j];
						}
						else {
							vc.pb(j);
							v.pb({j, vt[j].second});
						}
					}
				}else{
					prv[v.back().first] = j;
					v.pop_back();
				}
				if(v.empty())	break;
			}
			frt[vc.back()] = prv[vc.back()];
			for(int j=vc.size()-2; j>=0; j--){
				if(vc[j+1]==prv[vc[j]]-1){
					frt[vc[j]] = frt[vc[j+1]];
				}else{
					frt[vc[j]] = prv[vc[j]];
				}
			}
			while(!vc.empty())	vc.pop_back();
		}
	}
	for(int i=0; i<N; i++){
		if(vt[i].first==1){
			num[i] = i;
			pq1.push(num[i]);
			chk[i] = true;
		}else{
			//cout<<"*"<<prv[i]<<endl;
			num[i] = num[prv[i]];
			chk[num[i]] = (!chk[num[i]]);
			if(chk[num[i]]){
				pq1.push(num[i]);
			}else{
				pq2.push(num[i]);
			}
		}
		while(!pq1.empty() && !pq2.empty() && pq1.top()==pq2.top()){
			pq1.pop();
			pq2.pop();
		}
		if(pq1.empty()){
			printf("0\n");
		}
		else printf("%d\n", vt[pq1.top()].second);
	}
}

Compilation message

edi.cpp: In function 'int main()':
edi.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
edi.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 508 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 15 ms 504 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 4 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 4 ms 504 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 104 ms 11712 KB Output is correct
2 Correct 102 ms 11284 KB Output is correct

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 53 ms 6072 KB Output is correct
2 Correct 60 ms 7192 KB Output is correct
3 Execution timed out 3041 ms 6628 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 508 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 15 ms 504 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 4 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 4 ms 504 KB Output is correct
10 Correct 104 ms 11712 KB Output is correct
11 Correct 102 ms 11284 KB Output is correct
12 Correct 53 ms 6072 KB Output is correct
13 Correct 60 ms 7192 KB Output is correct
14 Execution timed out 3041 ms 6628 KB Time limit exceeded
15 Halted 0 ms 0 KB -