/*
#include <stdio.h>
void add(int* x)
{
*x = 100;
printf("%d\n", *x);
}
int main()
{
int x;
x = 2;
printf("%d\n", x);
add(&x);
printf("%d\n", x );
return 0;
}
*/
/*
#include <stdio.h>
void func(int* x)
{
x[0] = 10;
}
int main()
{
int ar[5] = {1, 2, 3, 4, 5};
printf("%d\n", ar[0]);
func(ar);
printf("%d\n", ar[0]);
return 0;
}
*/
/*
#include <stdio.h>
void swap( int a, int b )
{
int t;
t = a;
a = b;
b = t;
}
int main()
{
int x, y;
x = 2, y = 3;
printf("%d %d\n", x, y);
swap(x, y);
printf("%d %d", x, y );
return 0;
}
*/
/*
#include <stdio.h>
void swap(int* a, int* b)
{
int t = *a;
t = *a;
*a = *b;
*b = t;
}
int main()
{
int x, y;
x = 2, y = 3;
printf("%d %d\n", x, y );
swap( &x, &y );
printf("%d %d", x, y );
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int x = 10;
int* p = &x;
int** pp = &p;
printf("%d\n", x);
printf("%d\n", *p);
printf("%d\n", **pp);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int x = 10;
int* p = &x;
int* pp = &p;
printf("%d\n", *p);
printf("%d\n", *pp);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int x = 10;
int* p = &x;
int** pp = &p;
int*** ppp = &pp;
x = 100;
printf("%d\n", *p);
printf("%d\n", **pp);
printf("%d\n", ***ppp);
return 0;
}
*/
/*
#include <stdio.h>
void f()
{
printf("Hello");
return;
}
int main()
{
void (*p)();
p = f;
p();
return 0;
}
*/
/*
#include <stdio.h>
int f(int a, int b)
{
return a + b ;
}
int main()
{
int(*pp) (int, int);
pp = f;
printf("%d ", pp(10, 20));
return 0;
}
*/
/*
#include <stdio.h>
void f(int a, int b)
{
int i, s = 1;
for( i = 1; i < b; ++i)
{
s = s * a;
printf("%d", s );
}
}
int main()
{
void(*fp)(int, int)
fp = f;
fp(2, 5);
return 0;
}
*/
/*
#include <stdio.h>
int f1(int a)
{
return a * a;
}
double f2(int a, int b)
{
return ( a + b ) / 2.0;
}
int main()
{
int(*fp)(int);
double(*dp)(int, int);
fp = f1;
dp = f2;
printf("%.2lf", dp( fp(3), fp(4) ) );
return 0;
}
*/
/*
#include <stdio.h>
void f(int a, int b)
{
int i, s = 1;
for(i = 1; i <= b ; ++i)
{
s = s * a;
printf("%d", s);
}
}
int main()
{
void (*fp)(int,int);
fp = f;
fp(2, 5);
return 0;
}
*/
/*
#include <stdio.h>
int f1(int a)
{
return a * a;
}
double f2(int a, int b)
{
return (a + b)/ 2.0 ;
}
int main()
{
int (*fp)(int);
double (*dp)(int, int);
fp = f1;
dp = f2;
printf("%.2lf", dp( fp(3), fp(4) ) );
return 0;
}
*/
/*
#include <stdio.h>
int f(int *a)
{
int i, s = 0;
for(i = 0;i < 5;++i)
{
s += a[i];
}
return s;
}
int main()
{
int a[] = {4, 7, 1, 5, 3};
int k = f(a);
printf("%d", k);
return 0;
}
*/
/*
#include <stdio.h>
void rever(char* a)
{
int i;
for(i = 0; a[i]; ++i)
{
putchar(a[i]);
}
}
int main()
{
char str[] = "World Computer";
rever(str);
return 0;
}
*/
/*
#include <stdio.h>
int mlen(char* a)
{
int i, k = 0;
for(i = 0;a[i]; ++i) k++;m
return k;
}
int main()
{
char str[] = "World Computer";
int k = mlen(str);
printf("%d", k );
return 0;
}
*/
/*
#include <stdio.h>
int f(int* a)
{
int i, s = 0;
for(i = 0;i < 5;++i)
{
s += a[i];
}
return s;
}
int main()
{
int a[] = {4, 7, 1, 5, 3};
int k = f(a);
printf("%d", k );
return 0;
}
*/
/*
#include <stdio.h>
int f(int* a)
{
int i, s = 0;
for(i = 0;i < 5;++i)
{
s = s + *(a + i);
}
return s;
}
int main()
{
int a[] = {4, 7, 1, 5 ,3};
int k = f(a);
printf("%d", k );
return 0;
}
*/
/*
#include <stdio.h>
int cmp(char* a, char* b)
{
int i, len1 = 0, len2 = 0;
int mlen;
for(i = 0; a[i]; ++i ) len1++;
for(i = 0; b[i]; ++i ) len2++;
if( len1 > len2 ) mlen = len1;
else mlen = len2;
for(i = 0; i < mlen; ++i)
{
if ( *(a + i) > *(b + i) ) return 1;
else if ( *(a + i) < *(b + i) )return -1;
} return 0;
}
int main()
{
char str1[] = "abcde";
char str2[] = "acde";
int k = cmp( str1, str2 );
printf("%d", k);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int data[4][2] = {1, 2, 3, 4, 5, 6, 7, 8};
int (*p)[2] = data;
printf("(1) %d %d\n", data, data[0]);
printf("(2) %d %d\n", p, p + 1);
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int data[4][2] = { 1, 2, 3, 4, 5, 6, 7, 8};
int (*p)[2] = data;
printf("(1) %d %d\n", *( *(p + 2) + 1), *( (*(p) + 1 ) ) );
printf("(2) %d %d\n", data[0][0], p[0][0] );
return 0;
}
*/
/*
#include <stdio.h>
int main()
{
int com[] = {1 , 2, 3, 4, 5, 6, 7, 8, 9, 10};
int*p = com + 1;
++p;
printf("[%d] \n", *p );
printf("[%d] \n", *(p++) );
printf("[%d] \n", *p );
printf("[%d] \n", ++*p++ );
return 0;
}
*/
/*
#include <stdio.h>
int main(void)
{
int number = 100;
int arr[4] = {10, 0, 20, 50};
char data = 'A';
int* pNumber = &number;
int* pArr = &arr[2];
char* pData = &data;
double* pDouble;
*pNumber = 50;
printf("(1) %d \n", sizeof(pArr) );
printf("(2) %d \n", sizeof(pData) );
printf("(3) %d \n", sizeof(pDouble) );
printf("(4) %d \n", number );
printf("(5) %d \n", *pNumber );
printf("(6) %d \n", &arr[3] - &arr[1] );
printf("(7) %d \n", arr[3] - arr[1] );
printf("(8) %d \n", ('B' - *pData) * 10 );
return 0;
}
*/
/*
#include <stdio.h>
int main(void)
{
char* a = "computer science";
int len = 0, i;
printf("(1) %c \n", *a + 1);
printf("(2) %c \n", *(a + 2) );
printf("(3) %s \n", a + 3);
for(i =0; i < 100; ++i)
{
if( *(a + i) == '\0' ) break;
++len;
}
printf("(4) ------\n");
for(i = len - 1;i >= 0; --i)
{
if( *(a+ i) == 'e' )
{
printf("%s \n", a + i);
}
}
return 0;
}
*/