| Author | C Programming Assignment | Scar0ptics
Member
Posts: 229
Location: ∆ P®0X¥ W0R|D ∆
Joined: 19.11.13
Rank: Mad User | | I thought I would share this for those who are interested 
List the output of the following code and explain it without using the compiler.
#include <stdio.h>
int main () {
int x [5];
x[0] = 100;
x[1] = 50;
x[2] = 25;
x[3] = 12;
x[4] = 6;
int *y = x;
printf("%d\n", *y+2);
printf("%d\n", *(y+2));
printf("%d\n", x[5]);
printf("%d\n", y);
}
2.) Create a Swap Function so that it correctly swaps two Integers and has the following output. Also include the call to the function in main. You must use pointers in your solution.
1,0
0,1
#include<stdio.h>
int main(int argc, char ** argv) {
int x = 0;
int y = 1;
printf("%d,%d\n", x,y);
// Swap Function
printf("%d,%d\n", x,y);
}
3.) Given the following Point Struct Create 5 points and chain them together using the next pointer, then print them out using a while loop.
Struct Point {
int x;
int y;
point *next;
}
*************************************************************************
Ill post the answers later.....
Edited by Scar0ptics on 15-11-16 13:01 |
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| Author | RE: C Programming Assignment | rex_mundi
☆ Lucifer ☆
Posts: 2018
Location: Scotland
Joined: 20.02.08
Rank: God | | | lol what's this for anyway ? |
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| Author | RE: C Programming Assignment | Scar0ptics
Member
Posts: 229
Location: ∆ P®0X¥ W0R|D ∆
Joined: 19.11.13
Rank: Mad User | | | Its actually one of my assignments that I wanted to share. | |
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| Author | RE: Answers: | Scar0ptics
Member
Posts: 229
Location: ∆ P®0X¥ W0R|D ∆
Joined: 19.11.13
Rank: Mad User | | 1.)
printf("%d\n", *y+2); // 102
printf("%d\n", *(y+2)); //25
printf("%d\n", x[5]); //writes a random number out of system memory, as it is outside of what we implemented.
printf("%d\n", y); // writes a random number out of system memory, as it is outside of what we implemented.
2.) Create a Swap Function so that it correctly swaps two Integers and has the following output. Also include the call to the function in main. You must use pointers in your solution.
1,0
0,1
#include<stdio.h>
int main(int argc, char ** argv) {
int x = 0;
int y = 1;
void swap (int * _x, int * _Y);
printf("%d,%d\n", x,y);
swap(&x,&y);
printf("%d,%d\n", x,y);
}
// swap function
void swap (int * _x, * _y) {
int x = * _x;
int *_x = *_y;
int *_y = x;
}
3.) Given the following Point Struct Create 5 points and chain them together using the next pointer, then print them out using a while loop.
Struct Point {
int x;
int y;
point *next;
}
int main ( int argc, char **, argv) {
position a;
a.x = 100;
a.y = 200;
position a2;
a2.x = 1000;
a2.y = 2000;
a2.next = NULL;
a.next = &a2;
position a3;
a3.x = 10000;
a3.y = 20000;
a3.next = NULL;
a2.next = &a3;
position a4;
a4.x = 100000;
a4.y = 200000;
a4.next = NULL;
a3.next = &a4;
position a5;
a5.x = 1000000;
a5.y = 2000000;
a5.next = NULL;
a4.next = &a5;
position aa = &a;
while (AA != NULL) {
printf("%d,%d\n", aa->x, aa->y);
aa = aa->next;
}
}
Edited by Scar0ptics on 16-11-16 01:22 | |
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