Submission #862073

#	Time	Username	Problem	Language	Result	Execution time	Memory
862073		iskhakkutbilim	Zalmoxis (BOI18_zalmoxis)	C++17	0 / 100	118 ms	5444 KiB

zalmoxis

#include <bits/stdc++.h>
using namespace std;

#define ff first
#define ss second
#define all(a) a.begin(), a.end()

int n, k;
vector<int> ans;
int st[35];
vector<int> First[35];
int del, idx;
void f(int x, int depth){
	if(x <= 0) return;
	int mn = 1;
	while(st[mn] <= 0 && 31 >= mn) mn++;
	if(mn > x){
		ans.push_back(x);
		st[x]--;
		del++;
	}else if(First[x].empty() or First[x].back() + del > ans.size() + 1){
		f(x-1, depth + 1);
		f(x-1, depth + 1);
	}else if(First[x].back() + del <= ans.size() + 1){
		ans.push_back(x);
		First[x].pop_back();
		st[x]--;
	}else assert(false);
	
}


main(){
	cin >> n >> k;
	for(int i = 0;i < n; i++){
		int x; cin >> x;
		st[x]++;
		First[x].push_back(i + 1);
	}
	for(int i = 1;i <= 30; i++){
		reverse(all(First[i]));
	}
	/*
	5 1
	28 25 25 26 27
	
	6 1
	28 25 25 26 27 29
	
	5 1
	28  25 26 27 29
	*/
//	f(30, 1);
//	while(ans.size() < n + k){
//		vector<int> have = ans;
//		vector<int> merge;
//		ans.clear();
//		for(int i = 0;i < have.size(); i++){
//			if(have[i] > 1){
//				f(have[i]-1, 1);
//				f(have[i]-1, 1);
//				for(int j = 0;j < i; j++) merge.push_back(have[j]);
//				for(int x : ans) merge.push_back(x);
//				for(int j = i + 1; j < have.size(); j++){
//					merge.push_back(have[j]);
//				}
//				break;
//			}
//		}
//		if(merge.empty()) assert(false);
//		ans = merge;
//	}
	for(int i = 0;i < ans.size(); i++) cout << ans[i] << ' ';
	return 0;
}

Compilation message (stderr)

zalmoxis.cpp: In function 'void f(int, int)':
zalmoxis.cpp:21:53: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  }else if(First[x].empty() or First[x].back() + del > ans.size() + 1){
      |                               ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
zalmoxis.cpp:24:33: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |  }else if(First[x].back() + del <= ans.size() + 1){
      |           ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
zalmoxis.cpp: At global scope:
zalmoxis.cpp:33:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   33 | main(){
      | ^~~~
zalmoxis.cpp: In function 'int main()':
zalmoxis.cpp:73:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |  for(int i = 0;i < ans.size(); i++) cout << ans[i] << ' ';
      |                ~~^~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 70