Submission #36409

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
36409	2017-12-08 17:28:27	mohammad_kilani	Carnival (CEOI14_carnival)	C++14	100 / 100	43 ms	3188 KiB

carnival

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#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define oo 2000000000
const int N = 300010;
int num[N];
int ask(int l,int r){
  if(r == l) return 1;
  printf("%d",r-l+1);
  for(int i=l;i<=r;i++) printf(" %d",i);
  puts("");
  fflush(stdout);
  int res ;
  scanf("%d",&res);
  return res;
}
 
int main() {
  //freopen("in.txt","r",stdin);
  int n , cnt = 1;
  scanf("%d",&n);
  for(int i=1;i<=n;i++){
    if(num[i] == 0){
      num[i] = cnt++;
    }
    int low = i + 1, high = n , res = i;
    while(high >= low){
      int mid = (low + high) / 2;
      int cur = ask(i,mid);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

carnival.cpp: In function 'int ask(int, int)':
carnival.cpp:15:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&res);
                  ^
carnival.cpp: In function 'int main()':
carnival.cpp:22:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20