Submission #290958

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
290958	2020-09-04 15:04:57	Plurm	"The Lyuboyn" code (IZhO19_lyuboyn)	C++11	100 / 100	312 ms	35192 KiB

lyuboyn

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#include <bits/stdc++.h>
using namespace std;
int lsb[300005];
int rmp[300005];
int seq[300005];
set<string> s;
int main(){
  int n,k,t;
  scanf("%d%d%d",&n,&k,&t);
  if(k % 2 == 0 || k >= n){
    printf("-1\n");
    return 0;
  }
  for(int i = 0; i <= 18; i++) rmp[1 << i] = i;
  for(int i = 0; i < (1 << n); i += 2){
    int lsb1 = rmp[i+1 & -(i+1)];
    int lsb2 = rmp[i+2 & -(i+2)];
    int c = 1;
    for(int j = 0; j < n; j++){
      if(j != lsb1 && j != lsb2 && c < k){
        c++;
        seq[i] |= 1 << j;
      }
    }
    seq[i+1] = seq[i];
  }
  printf("%d\n", 1 << n);
  char bs[32];
  scanf("%s",bs);
  if(strlen(bs) != n) while(true);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

lyuboyn.cpp: In function 'int main()':
lyuboyn.cpp:16:19: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
   16 |   int lsb1 = rmp[i+1 & -(i+1)];
      |                  ~^~
lyuboyn.cpp:17:19: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
   17 |   int lsb2 = rmp[i+2 & -(i+2)];
      |                  ~^~
lyuboyn.cpp:30:16: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |  if(strlen(bs) != n) while(true);
      |     ~~~~~~~~~~~^~~~
lyuboyn.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |  scanf("%d%d%d",&n,&k,&t);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
lyuboyn.cpp:29:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |  scanf("%s",bs);
      |  ~~~~~^~~~~~~~~

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• Subtask 2: 5 / 5
• Subtask 3: 3 / 3
• Subtask 4: 11 / 11
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• Subtask 8: 17 / 17