Submission #1286474

#TimeUsernameProblemLanguageResultExecution timeMemory
1286474nataliaaSouvenirs (IOI25_souvenirs)C++20
25 / 100
12 ms400 KiB
#include "souvenirs.h"
#include<bits/stdc++.h>
using namespace std;
void buy_souvenirs(int N, long long P0) {
	if(N==2){pair<vector<int>, long long> res = transaction(P0-1);return;}
	if(N==3) {
		pair<vector<int>, long long> res = transaction(P0-1);
		if(res.first.size()==1) {
			transaction(P0-2-res.second);
			
			transaction(P0-2-res.second);
		}
		else {
			transaction((P0-1-res.second)/2);
		}
		return;
	}
	if(P0==N){
		for(int i = 1; i <N; i++) {
		for(int j = 1; j<=i; j++) {
			pair<vector<int>, long long> res = transaction(P0-i);
		}
	}
	return;
	}
	bool t = 0;int cnt=N, p = P0;
	for(int i = 1; i < N-1; i++) {
		pair<vector<int>, long long> res = transaction(p-1);
		if((int)res.first.size()>1) {
			cnt--;
			t=1;
			for(int j = 1;j < i; j++) {
				transaction(p-2);
			}
		}
		else {
			for(int j = 1;j < i; j++) {
				transaction(p-1-res.second);
			}
			p-=res.second;
		}
		p--;
	}
	if(t) for(int i = 0; i<cnt; i++) transaction(1);
	else for(int i = 0; i < N-1; i++) transaction(p-1);
}
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