Submission #1091056

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091056		Abito	Floppy (RMI20_floppy)	C++17	7 / 100	23 ms	6524 KiB

floppy

#include <bits/stdc++.h>
#include "floppy.h"
#define pb push_back
using namespace std;
void read_array(int subtask_id, const std::vector<int> &v) {
    stack<int> s;
    int n=v.size(),b[n];
    string ans="";
    for (int i=n-1;i>=0;i--){
		 b[i]=0;
		 while (!s.empty() && v[s.top()]<v[i]) s.pop();
		 if (!s.empty()) b[i]=s.top();
		 s.push(i);
	 }
	 for (int i=0;i<n;i++){
		 for (int j=0;j<13;j++){
			 if (b[i]&(1<<j)) ans+='1';
			 else ans+='0';
		 }
	 }
	 //for (int i=0;i<n;i++) cout<<b[i]<<' ';cout<<endl;
	 save_to_floppy(ans);
	 return;
}

std::vector<int> solve_queries(int subtask_id, int n,
        const std::string &bits,
        const std::vector<int> &L, const std::vector<int> &R) {
	vector<int> ans;
	int c[n];
	for (int i=0;i<n;i++){
		c[i]=0;
		for (int j=i*13;j<(i+1)*13;j++){
			if (bits[j]=='1') c[i]|=(1<<(j-i*13));
		}
	}
	for (int i=0;i<L.size();i++){
		int l=L[i],r=R[i];
		while (true){
			if (c[l]==0 || c[l]>r) break;
			l=c[l];
		}
		ans.pb(l);
	}
	//for (auto u:ans) cout<<u<<' ';cout<<endl;
	return ans;
}

Compilation message (stderr)

floppy.cpp: In function 'std::vector<int> solve_queries(int, int, const string&, const std::vector<int>&, const std::vector<int>&)':
floppy.cpp:37:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |  for (int i=0;i<L.size();i++){
      |               ~^~~~~~~~~
stub.cpp: In function 'void run2()':
stub.cpp:101:30: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  101 |     if (query_answers.size() != M) {
      |         ~~~~~~~~~~~~~~~~~~~~~^~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 21
• Subtask 3: 0 / 72