#include <stdio.h>
#include <stdlib.h>

int main()
{
  double adouble;
  int anint;
  char achar;

  FILE *fp;

  if (!(fp=fopen("file.txt","r"))) {
    perror("fopen");
    exit(1);
  }
  
  while (fscanf(fp,"%lf %d %c",&adouble, &anint, &achar)==3) {
    fprintf(stdout,"%lf %d %c\n",adouble, anint, achar);
  }
  if (ferror(fp)) {
    perror("fread");
  }
  fclose(fp);
}





#include <stdio.h>
#include <stdlib.h>

int main()
{
  double adouble;
  int anint;
  char achar;

  FILE *fp;

  if (!(fp=fopen("file.txt","r"))) {
    perror("fopen");
    exit(1);
  }
  
  while (fscanf(fp,"%lf %d %c",&adouble, &anint, &achar)==3) {
//
    if (achar=='f') break;
//
    fprintf(stdout,"%lf %d %c\n",adouble, anint, achar);
  }
  if (ferror(fp)) {
    perror("fread");
  }
  fclose(fp);
}





#include <stdio.h>
#include <stdlib.h>

int main()
{
  double adouble;
  int anint;
  char achar;

  FILE *fp;

  if (!(fp=fopen("file.txt","r"))) {
    perror("fopen");
    exit(1);
  }
  
  while (fscanf(fp,"%lf %d %c",&adouble, &anint, &achar)==3) {
//
    if (achar=='f') continue;
//
    fprintf(stdout,"%lf %d %c\n",adouble, anint, achar);
  }
  if (ferror(fp)) {
    perror("fread");
  }
  fclose(fp);
}





#include <stdio.h>

//#define USE_CONST 

#define SIZE 5
const int size=5;

int main()
{

#if defined(USE_CONST)
    int array2[size];
#else
    int array[SIZE];
#endif

#if defined(USE_CONST)
    int attay4[size]={-1};
#else
    int array3[SIZE]={-1};
#endif
}




#include "stdio.h"

#define CONST

#if defined(CONST)
const int size = 4;
#else
#define size 4
#endif

int arr[size];
 
int main()
{
 if(!arr[0])
  printf("Initialized to ZERO");
 else
  printf("Not initialized to ZERO");
 
 return 0;
}





#include "stdio.h"
  
void fun(int n)
{
   int idx;
   int arr1[n] = {0};
   int arr2[n];
  
   for (idx=0; idx<n; idx++)
       arr2[idx] = 0;    
}
  
int main()
{
   fun(4);
   return 0;
}




#include <stdio.h>
#include <strings.h>

#define N 10
int main()
{
    int array[N];
//    bzero(array,sizeof(array));
    for (int i=0; i<N; i++) printf("%d ",array[i]);
}




#include <stdio.h>
#include <strings.h>

#define N 10
int main()
{
    int array[N]={0};
    for (int i=0; i<N; i++) printf("%d ",array[i]);
}




#include <stdio.h>

int main()
{
    int i;
    int arr[5] = {-1};
    for (i = 0; i < 5; i++)
        printf("%d ", arr[i]);
    return 0;
}




#include <stdio.h>
 
int main()
{
   int arr[] = {1, 2, 3, 4, 5, 6, 7, 8};
   int n = sizeof(arr)/sizeof(arr[0]);
   for (int i = 0; i < n; i++)
      printf("%d ", arr[i]);
   return 0;
}




#include <stdio.h>

int fun1(int x[], int n)
{
    for (int i=0; i<n; i++, x++) {
        printf("%d ",*x);
    }
    return(0);
}

int fun2(int *x, int n) 
{
    for (int i=0; i<n; i++) {
        printf("%d ",x[i]);
    }
    return(0);
}

int main()
{
    const int n=10;
    int array[n];
    for (int i=0; i<n; i++) array[i]=i;
    fun1(array,n);
    printf("\n");
    fun2(array,n);
}




#include<stdio.h> 
   
int main() 
{ 
    int a[] = {1, 2, 3, 4, 5, 6}; 
    printf("%ld %ld\n", sizeof(a),sizeof(&a)); 

    char *p = (char *)(&a+1);
    printf("%ld\n",p-(char *)a);  

    return 0; 
}




#include <stdio.h>

#define SIZE(arr) sizeof(arr) / sizeof(*arr);

void fun(int* arr, int n)
{
    int i;
    *arr += *(arr + n - 1) += 10;
}
 
void printArr(int* arr, int n)
{
    int i;
    for(i = 0; i < n; ++i)
        printf("%d ", arr[i]);
}
 
int main()
{
    int arr[] = {10, 20, 30};
    int size = SIZE(arr);
    fun(arr, size);
    printArr(arr, size);
    return 0;
}




#include <stdio.h>
int main()
{
    char p;
    char buf[10] = {1, 2, 3, 4, 5, 6, 9, 8};
    p = (buf + 1)[5];
    printf("%d\n", p);
    return 0;
}




# include <stdio.h>
int main ()
{
    int a [5] = {0,1,2,3,4};
    int i, j;
    for (i = 0, j = 5; i < j; a [i++] = a [j--]);
    printf ("%d\n", *a);
}




#include <stdio.h>


//#define INITIALIZER {}
//#define INITIALIZER {1,2}
//#define INITIALIZER {{1},{2}}

int main()
{
    int array[][5]=INITIALIZER;
    int n=sizeof(array)/sizeof(array[0][0]);
    printf("size:%d\n",n);
    for (int i=0, *p=(int *)array; i<n; i++,p++) {
        printf("%d ",*p);
    }
}