Submission #248381

#	Time	Username	Problem	Language	Result	Execution time	Memory
248381		kostia244	Mechanical Doll (IOI18_doll)	C++17	37 / 100	134 ms	10340 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
using namespace std;
int n, m, tN;
vector<int> x, y, a;
int build(int s, int t) {
	if(s+t >= tN) {
		if(s == tN-1) return 0;
		if(s >= n) return -1e9;
		return a[s];
	}
	int A = build(s, 2*t);
	int B = build(s+t, 2*t);
	x.push_back(A);
	y.push_back(B);
	//cout << -(int)x.size() << " " << s << " " << t << " // " << A << " " << B << '\n';
	return -(int)x.size();
}
void create_circuit(int M, vector<int> A) {
	n = A.size(), m = M;
	a = A;
	tN = n+1;
	//printf("%d %d", tN, n);
	while(tN&(tN-1)) tN++;
	//printf("%d %d", tN, n);
	build(0, 1);
	for(int i = 0; i < x.size(); i++) {
		if(x[i] == -1e9) x[i] = -(int)x.size();
		if(y[i] == -1e9) y[i] = -(int)x.size();
	}
	vector<int> C(M + 1, -(int)x.size());
	answer(C, x, y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:27:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |  for(int i = 0; i < x.size(); i++) {
      |                 ~~^~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56