[c] Forum Topics

#include <stdio.h> #include <stdlib.h> void main() { char str[30],str1[30],str2[50]; int i,n,j,k; printf("enter the string: "); fgets(str,sizeof(str),stdin); printf("enter the inserting string: "); fgets(str1,sizeof(str1),stdin); printf("enter the position: "); scanf("%d",n); for(i=0,k=0;i<n;i++,k++) str2[k]=str[i]; for(j=0;str1[j]!='\0';j++,k++) str2[k]=str[j]; for(i=n;str[i]!='\0';i++,k++) str[k]=str[i]; printf("%s",str); } no errors for example output will be like this enter the string:rohinnj enter the inserting …

#include <stdio.h> #include <stdlib.h> void main() { char x[10],y[10]; int i,j,k,flag=0; printf("enter the string: "); fgets(x,sizof(x),stdin); for(i=0;x[i]!='\0';i++) for(j=0,k=i;x[k]!='\0';j++,k--) { y[j]=x[k]; } if(x==y) { printf("the string is palindrome"); } else { printf("not palindrome"); } }

my professor gave this machine problem as a part of our finals.can you help me out/ here are the instructions: 2 player tictactoe -program a 2player tictactoe game wherein two players alternately key-in the coordinates to which they want to place a 'o' or an 'x' -the game board is …

This is how mine [B]strcmp[/B] function would look like if I'd to implement it from scratch :)

I am trying to create a basic program with a user defined header file.I created the project in visual studio. #test1.cpp # #include <stdio.h> #include "multiply.h" int main() { int y; y=multiply(5,10); printf("%d\n",y); printf("%s","jigar"); getch(); return 0; } # multiply.h # int multiply(int a,int b); # multiply.c # #include "multiply.h" …

Hi! i have to *create a game , purely in C Language*. How to start and how to end? what kind of game can i try to make? which IDE to use ? i cant run <graphics.> header file for graphics in any IDE. How to configure init() = (&gm, …

What does this expression mean? f==0?1:f*fact(f-1)

Hi, I having this error and i don't know how to fix it, can anybody help please: "declaration of `c' as multidimensional array must have bounds for all dimensions except the first", i'm getting this error because of : [code]void lcs::LCS_Length(int X[], int Y[], [COLOR=Red]int c[][], char b[][], [/COLOR] int …

#include<stdio.h> #include<conio.h> #include<stdlib.h> void main() { char a[100],b[50],c[50]; int i,n,j,k,d; printf("enter the string: "); fgets(a,sizeof(a),stdin); printf("enter the string to be removed: "); fgets(b,sizeof(b),stdin); printf("enter the string to be searched: "); fgets(c,sizeof(c),stdin); for(i=0;a[i]!='\0';i++) { if(a[i]==b[0]) { k=i; printf(" \n the first character is at %d",k); printf("\n lets see whelther searchstring is …

My assignmnet is to read a csv into a structure. A few sample lines of the csv look like this: 21, John Henry Blue, 6598 Wish Street, Elves, CA, 54862 9, Chad Vile, 32 Bundle St. , Carver, IN, 28105 I can't use pointers, except to point to the file …

1) Write a program to make commandline calculator ? Format like that : excutablefile firstoperand opertator secondoperand Ex : ./a.out 1 + 3 result : 5

#include <stdio.h> #include <stdlib.h> #include<string.h> void main() { char a[200],n,c,b; int i; printf("enter the new string: "); scanf("%20s",a); printf("enter the character to be replaced: "); scanf("%20s",b); printf("enter the new character: "); scanf("%20s",c); for(i=0;a[i]!='\0';i++) { if(b==a[i]) { a[i]=c; } } printf("%s",a); } i have 0 errors when compiler starts to work.it …

#include <stdio.h> #include <stdlib.h> void main() { char a[100]; int i,c=0; printf("enter the text: "); scanf("%20s",a); for(i=0;a[i]!='\0';i++) { if(a[i]==32) { c++; } } printf("number of spaces in text is %d",c); } ascii value of space is 32 but it shows o spaces in output

hi... typdef char * hello; const hello ptr1,ptr2; So, in this snippet, my question is that what is constant ? is ptr1 constant or the value to which ptr1 will "point to" will be constant ? and will u please give reason also? my thinking: const hello means (const char …

hi, #include<stdio.h> int main() { const int i=10; int *ptr= (int*)&i; printf("%d",*ptr); *ptr=11; printf("%d",*ptr); printf("%d",i); getch(); return 0; } in this, we trickly changed the value of a constant variable. how is it changing the value of i ? in the o/p it is giving o/p , value of i …

hi, int common(node *temp,int c,int d) { int a=0; if(temp==NULL) return 0; else if(temp->a==c || temp->a==d) return 1; a=common(temp->left,c,d)+common(temp->right,c,d); if(a==2) { printf("%d\n",temp->a); // break; return 0; } else return a; } this is my recusrion code. Actually, I want to end this recusrion process by adding some statement where i …

hi, int arr[2][2][2]={1,2,3,4,5,6,7,8}: int *p,*q; q=(int*)arr; printf("%d",*q); my question is that how is it giving output as "1"(ofcourse, without quotes). what will change if i don't typecast arr in 3rd line of code? will anyone please explain.Is it giving o/p "1" ,just because of that typecast ? my thinking: as …

I want to implement public key cryptography in my poject. How to implement using c langugae. Is there any library or api. Thanks for help

#include <stdio.h> #include <stdlib.h> void main() { char a[50]; int n; printf("enter the string : "); gets(a); n=strlen(a); printf("%d",n); for(i=n;i>0;i--) { printf("%c",a[i]); } } the error is at i=n why cant we use i=n;

Hi geeks, I'm using visual studio to write and execute programs. I want to create breakpoint not like software breakpoints(F9 for debugging). I want to build the project in release mode and want to have breakpoint. I heard something like _asm int 3 to create breakpoint. Can anyone explain _asm …

The computer is a binary beast. We want to go from the one-fingered digital box to the ten-fingered human being and convert binary to denary(base 10) numbers. This is how it works, for instance, binary 10010 is calculated as 1*16+0*8+0*4+1*2+0*1 = decimal 18. Just because it's easy, let's throw in …

#include <stdio.h> #include <stdlib.h> void main() { char str[10],str1[10],str2[20]; int i,j,k; printf("enter string1: "); gets(str1); printf("enter the string 2: "); gets(str2); for(i=0,j=0;str1[i]!='\0';i++,j++) str[j]=str[i]; for(i=0,k=j;str2[i]!='\0';i++,k++) str[k]=str2[i]; printf("%s",str); } not producing correct output

#include <stdio.h> #include <stdlib.h> void main() { int a=5,b=10,*ptr,*pt1; ptr=&a; pt1=&b; b=*ptr; a=*pt1; printf("%d \n %d",a,b); } producing same values not swapped

hi.... int x=30, *y,*z; y=&x; assume x address is 500 and int is of 4 bytes z=y; *y++=*z++; x++; printf("%d %d %d",x,y,z); i want to ask that how the value of y is 504 here ? firstly value of z is assigned to value of y. then z is incremented …

Hi! I'm constructing a code for parsing results in an html form and I'm having problems with strcat. It's really weird 'cause I'm positive the syntax and all that are all correct. I can't seem to find where the problem is. Basically, I have this non-empty string "copy" and when …

hi i want to convert the prefix form to postfix,prefix and infix form but when i input +5*62 it retuns only 2 what is wrong with my code can anybody help to solve this #include<stdio.h> #include<conio.h> #include<stdlib.h> #define Operator 1 #define notOperator 0 #define empty -1 struct node{ char item; …

hi! everyone. please could you give me some** great project ideas in C language**. Projects which deliver a practical solution to a problem . At the same time ,could you give some advice on how to start and end it perfectly. Thanks.

When i declare array in c before main method it gives, an error. Declaration is char a[65000]; main() {} and another declaration in other file char a[63000]; main() {} has no error what is the reason.

#include <stdio.h> #include <stdlib.h> #include<string.h> void main() { char name[30],mname[40]; printf("enter the num:"); gets(name); strcat(name,123); printf("%s",name); } is it possible to concatenate num and character its not working how to concatenate numbers and character

hi, int fun(int(*)()) { ....... ....... ...... } int main() { ....... ...... ....... fun(main); ........ ........ } my question is that how can we use "main" (only name without parenthesis) as the pointer to a function ? because main() is a function. I am not getting it how is …

how to do the total of value in the array ben[20] have to use function or other ??????? #include<stdio.h> #include<stdlib.h> void main() { int ben[20]; printf("pls enter 20 no\n"); for (int i=0; i<20; i++) { scanf("%d",&ben[i]); } system("pause"); }

#include <stdio.h> #include <stdlib.h> void main() { char a[30],b[30],i; printf("enter the a: "); gets(a); for(i=0;a[i]!='\0';i++) { b[i]=a[i]; } printf("%d",b); } it produces a wrong output

Here's the problem, I was wondering if i am right to assume that when a three-digit input is entered, i.e. 123, then the string 1 will be stored to al, 2 to ah, but i'm not sure where the 3 goes, or if ever it's plain wrong to look at …

I have to wirte a code for monte carlo pi approximation for a menu driven calculator. here is my code but when i run it it shows me 1 instead of the pi value. can someone tel me what is wrong. double approximatepi(void) { double x,y,z,pi,randomnumber; double r,p,in; int tries; …

hi.. im new here, and this will be my very first post ever in this website.. i am using Dev C++.. so can you help me out a little here?? i have this code.. yes, some of these codes are found all over the internet.. but most of the code …

how do i implement a c program that removes all nonalphabets in the given string??

Ok, I'm really having a hard time with this, but I don't even know what I'm missing. I t should be easy. Here's the problem: You have a linear equation system: a1x+a2y=a3 // a4x + a5y=a6. Ask for a1, a2, a3, a4, a5 and a6 as input, solve x and …

generally we can build a application in java and vb make it as a exe.but how do we build application using c or c++.even some operating systems like xp was written in c++.how is it possible????/

Hello, can anyone suggest me how to execute graphics programs(such as DDA line algo) using GCC compiler under windows? graphics.h is a part of turbo c and is not available in gcc.. so is there any way to do this??

char a[5000]; main() {} and in another file main() { char a[5000]; } after compiling both file. exe of both file size have large difference. why

why arr[-2] gives value?

I'm writing a program that searches for particular sequences of bytes in a USB stick. The problem is that I don't know how to search effectively. ReadFile() allows me to buffer 512 bytes each time. If my sequence is fully present in that block, then there is no problem. But …

what is determinanat of matrix i have a code i dont understand what is the logic behind

In C++ you have this: std::string = "Name"; You can also read file with it, unlike reading the contents into a char[] with a limited amount of memory. So whats is C equivalent of a C++ string?

Write a computer program using the C Language which reads any base-10 number from the standard input (keyboard) and writes its binary and hexadecimal representation to the standard output (monitor). this is what I have and I am super confused and need help please. and I have to create this …

I am getting this output: This is the source string╠This is a destination string╠╠╠╠╠╠╠╠╠╠╠╠╠╠5Press any k ey to continue . . . My code is: void Problem5(char strDestination [], char strSource []) { int intIndexOfStrSource = 0; int intConcatenatedStringIndex = 0; int intStringDestinationIndex = 0; int intLengthOfDestination = strlen(strDestination); int …

#include<stdio.h> #include<string.h> int compare_string(char *first, char *second) { while(*first==*second) { if ( *first == '\0' || *second == '\0' ) break; first++; second++; } if( *first == '\0' && *second == '\0' ) return 0; else return -1; } int main(void) { char string[1000]; char word[20]; char *s; int len; …

Hello everyone, I'm new to C and was hoping ya'll could review my code. It is a simple workout program that prints a list of exercises into a .txt file. The major bug is in main.c line 18 and the generateProgram function in boxing_functions.c line 57. I'm still learning pointers …

Hello, I was curious to how I would go about modifying an existing text file (to all upper case) by the use of mapped memory. I think I have done the mapping correct, however I am stuck on how to modify the file. Help would be much appreciated, thanks! #include …

#include <stdio.h> #include <stdlib.h> void main() { int a[400],n,i; printf("enter the no of elements: "); scanf("%d",&n); printf("enter the no: "); for(i=0;i<n;i++) { scanf("%d",&a[i]); } n=n+1; printf("enter the no: "); scanf("%d",a[n]); for(i=0;i<n;i++) { printf("%d",a[i]); } } i inserted elements after that i again inserted its not working.it shows 0 errors but …