Submission #547449

#	Time	Username	Problem	Language	Result	Execution time	Memory
547449		vjudge1	Cigle (COI21_cigle)	C++14	0 / 100	1 ms	212 KiB

cigle

#include<stdio.h>
int main()
{
	int tc;
    scanf("%d",&tc) ;
    while(tc--)
    {
		int N;
        scanf("%d",&N);
        if (N == 1) 
  		{
            printf("1\n1 1\n") ;
            continue;
        }
        printf("%d\n",N/2) ;
        if (N%2 != 0) 
            printf("3 1 2 %d\n",N) ;
		else 
            printf("2 1 2\n");
        for (int i=4; i<=N; i+=2)
            printf("2 %d %d\n",i-1,i);
    }
    return 0 ;
}

Compilation message (stderr)

cigle.cpp: In function 'int main()':
cigle.cpp:5:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |     scanf("%d",&tc) ;
      |     ~~~~~^~~~~~~~~~
cigle.cpp:9:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |         scanf("%d",&N);
      |         ~~~~~^~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 11
• Subtask 3: 0 / 13
• Subtask 4: 0 / 15
• Subtask 5: 0 / 52