C++ C Programming Puzzles Papers

76)
#include <stdio.h>
#define MAXI 100
main(){
int x=6,done,i;
done=i=0;
do
{
if((x/=2)>1)
{i++; continue;}
else
done++;
}while ((i < MAXI) && !done);

printf("%d %d\n",i,done);
}

77)
#include <stdio.h>
main()
{
extern int i;
i=20;
printf("%d\n",sizeof(i));
}

78)
#include <stdio.h>
fun()
{
printf("Yes\n");
}

#define fun() printf("No\n")

main()
{
fun();
(fun)();
}

79)
#include <stdio.h>
main()
{
int i = 1;
switch(i) {
printf("\nHello, ");
case 1: printf("One, ");
i++;
break;
case 2: printf("Two");
break;
}
}

80)
#include <stdio.h>
#define DESHAWCURRENTDEBUGLEVEL 1
void main(void)
{
int i = 10 ;
int j = 15 ;

#ifdef DESHAWCURRENTDEBUGLEVEL
printf("%d\n",i);
#else
printf("%d\n",j);
#endif
}

81)
#include <stdio.h>
#define scanf "%s DE Shaw"
main()
{
printf(scanf,scanf);
}

82)
#include <stdio.h>
main()
{
char *p="abc";
char *q="abc123";

while(*p==*q)
{
printf("%c %c",*p,*q);
p++;q++;
}
}

83)
#include <stdio.h>
#define INTPTR int *
main()
{
INTPTR pi, pj;
int i,j;
i=10;j=20;
pi = &j;
pj = &j;
j++;
i= *pi;
printf("%d,",i);
j++;
// i= *pj;
printf("%d",pj);
}

84)
#include <stdio.h>
#include<string.h>
main()
{
char strp[] = "Never ever say no";
char *chp, c='e';
int i,j;
chp = strrchr(strp, c);
i = chp-strp;
for(j=0;j<=i;j++)printf("%c",strp[j]);
}

85)
#include <stdio.h>
main()
{
char str[] ="abcdef";
printf("str is %s",str);
str = "DESIS";
printf("str is %s",str);
}

86)
#include <stdio.h>
main()
{
int i = 10;
printf(" %d %d %d \n", ++i, i++, ++i);
}

87)
#include <stdio.h>
#include<string.h>
main()
{
char *str ="India pvt. ltd.";
char *str1 = "DESIS";
printf("str is %s",str);
printf("str is %s",str1);
strcpy(str,str1);
printf("str is %s",str);
}

88)
#include <stdio.h>
#include<string.h>
main()
{
char str[] ="DESIS India pvt. ltd.";
const char *str1= str;
strcpy(str1,"DESHAW");
printf("str is %s",str);
}

89)
#include <stdio.h>
main()
{
int i=4,j=2,k=0;
char c1='a',c2='b';
if(k==0)printf("k is zero\n");
else if(j==2)printf("j is 2\n");
else if(i==4)printf("i is 4\n");
if(c1!='a')printf("c1 is not a\n");
else if (c2=='a')printf("c2 is b");
else printf("Hello\n");
}

90)
#include <stdio.h>
main()
{
int a[3] = {1,2,3};
int i= 2;
printf("\n %d %d\n", a[i], i[a]);
}

91)
#include <stdio.h>
void fun(int, int*);
main()
{
int j,i;
int * intptr;
printf("enter an integer\n");
scanf("%d",&i);
intptr = &j;
j = i;
printf("i and j are %d %d \n",i,j);
fun(j,intptr);
printf("i is:%d",i);
printf("\n j is:%d",j);
}
void fun(int k, int *iptr)
{
k++;
(*iptr)++;
return;
}

92)
#include <stdio.h>
main()
{
int x;
x = printf("%d\n",x=printf("%d\n",100));
printf("%d\n",x);
}

93)
#include <stdio.h>
main()
{
int i;
char c;
for (i=0;i<5;i++){
scanf("%d",&c);
printf("%d",i);
}
}

94)
#include <stdio.h>
main()
{
int x = 10,y=2,z;
z=x/*y+y*/+y;
printf("%d\n",z);
}

95)
#include <stdio.h>
main()
{
int a[] = {0,1,2,3,4};
int *p[] = {a,a+1,a+2,a+3,a+4};
int **pp = p;

printf("%d, %d, %d ", *pp-a, pp-p, **pp);
pp++; pp++;;++pp;*++pp;
printf("%d, %d, %d ", pp-p, *pp-a, **pp);
}

96)
#include <stdio.h>
#include<stdlib.h>
#include<ctype.h>
main()
{
int *p, *c, i;
i = 5;
p = malloc(sizeof(i));
printf("\n%d",*p);
*p = 10;
printf("\n%d %d",i,*p);
c = calloc(2,i);
printf("\n%d\n",*c);
}

97)
#include <stdio.h>
main()
{
char input[] = "SSSWILTECH1\1\1";
int i, c;
for ( i=2; (c=input[i])!='\0'; i++)
{
switch(c)
{
case 'a': putchar ('i'); continue;
case '1': break;
case 1: while (( c = input[++i]) != '\1' && c!= '\0');
case 9: putchar('S');
case 'E': case 'L': continue;
default: putchar(c);continue;
}
putchar(' ');
}
putchar('\n');
}

98)
#include <stdio.h>
main()
{
unsigned int k = 987 , i = 0;
char trans[10];

do
{
trans[i++] = (k%16 > 9) ? (k%16 - 10 + 'a') : (k%16 - '0' );

} while(k /= 16);

for(i=0;i<10;i++)
printf("%c", trans[i]);
}

99)
#include <stdio.h>

main()
{
unsigned int k = 987 , i = 0;
char trans[10];

do {
trans[i++] = (k%16 > 9 ? k%16 - 10 + 'a' : k%16 - '0' );
printf("%d %d\n",k,k%16);

} while(k /= 16);

printf("%s\n", trans);
}

100)
#include <stdio.h>
main()
{
char *pk;
const char* p;
const char c = 'a';
char c1='b';
p=&c1;
pk = &c;
printf("%c %c",*pk,*p);
}