Submission #929493

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
929493	2024-02-18 05:55:06	bambaa	Rack (eJOI19_rack)	C++14	100 / 100	8 ms	4240 KiB

rack

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#include <bits/stdc++.h>
#include <iostream>
#include <set>
#include <cmath>
#include <iterator>
#include <vector>
 
#define ff first
#define ss second
#define mp make_pair 
#define ll long long
 
using namespace std;
int main() {
  int n;
  long long q, s = 0;
  cin >> n >> q;
  int modulo[n];
  modulo[0] = 1;
  for (int i = 1; i < n; i++){
    modulo[i] = (modulo[i - 1] * 2) % 1000000007;
  }
  bool way = true;
  for (int i = 0; i < n; i++){
    if (way == true){
      if (q % 2 == 0){
        s = (modulo[n - i - 1] + s) % 1000000007;
      } else {
        way = false;
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 60 / 60