15,552 Topics
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| | Can i allocate memory to an array of it or char using malloc ? if yes, then why is it so ? And if no then also why ? I am confused a little bit. thanks in advance to james sir ;) |
| | hi, i have a file which contains dfca2345f1278aba11110012567ade21 i also have a structure i need to read from file and print the values of struct in decimal form (i.e s.a=3754566469 , similarly b,c,d,e) so i ve come up with only this, i am not getting how to populate struct and …  |
| | Which of the following code is likely to take less time to get executed? /*Format 0*/ main(){ int a=3,b=5; printf("%d",a*b); } /*Format 1*/ int mult(int a,int b){ return a*b; } main(){ printf("%d",mult(3,5)); } /*Format 2*/ inline int mult(int a,int b){ return a*b; } main(){ printf("%d",mult(3,5)); } As of now,I understand … |
 | int a = 10; int b = ++a++; printf(b); The code when compied shows lvalue error.  |
| | Hi all, I have a simple program: #include<iostream> using namespace std; 6 int main() { char x; do { scanf("%c", x); } while (x != 'y'); return 0; } and for some reason when i gcc test.c i get "test.c:1:20: fatal error: iostream: No such fiel or directory compilation terminated." …  |
| | #include<stdio.h> void quicksort(int [10],int,int); int main(){ int x[20],size,i; printf("Enter size of the array: "); scanf("%d",&size); printf("Enter %d elements: ",size); for(i=0;i<size;i++) scanf("%d",&x[i]); quicksort(x,0,size-1); printf("Sorted elements: "); for(i=0;i<size;i++) printf(" %d",x[i]); return 0; } void quicksort(int x[],int first,int last){ int pivot,j,temp,i; if(first<last){ pivot=first; i=first; j=last; while(i<j){ while(x[i]<=x[pivot]&&i<last) i++; while(x[j]>x[pivot]) j--; if(i<j){ temp=x[i]; x[i]=x[j]; … |
| | Can anyone tell me the best way to check the number of bits in a number ? for ex, in 2 set bits are1 , in 3 it is 2. So what is best way today available so as to get that value ? thanks. just give me link of … |
 | What would be the error code for this?? Am I using perror() at right place?? The output shows "No error" #include <stdio.h> #include <conio.h> #define MAX_VAL 32000 int main() { start: int x; printf("Enter a value for x= "); scanf("%d", &x); if (x > MAX_VAL) { perror(""); getch(); system("cls"); goto … |
 | This is a simple password implementation. void getPassword() { int i = 0, flag = 0 ; char c ; char password[100] ; cout<<"\n Enter Password : " ; while(1) { c = getch() ; if(c! = 13 && c! = 8) { cout<<"*" ; Password[i] = c ; i++ … |
| | Hi all, I am currently trying to generate a number from a specified range using a function int number_range(int from, int to) { return (from + rand() % (to-from+1)); } but negative numbers cause the program to crash. How can i go about doing this so it can take numbers … |
| | http://www.spoj.pl/problems/BISHOPS/ hey, Can any one please see this problem and tell me how to deal with number like 10^100 ? Please help me out as it is used in many many problems. thanks in advance to everyone. |
| | int main() { extern int i; i=20; printf("%d\n",i); } hi.. actually this is asked to me today. In this no i is defined anywhere. only declaration is given in main(). then i was asked when the error will come ? like is it segmentation fault, linking error, complilation error or … |
| | Hey guys! Need some help with homework again, I have absolutely no idea what this means, could someone explain it to me with some example code? *For the quadratic equation problem, complete the 4th phase: Write the C program according to the algorithm specified in the lesson. File name should … |
 | i am getting weird result here. if condition at line 25 is satisfied only 4 times while reading cpuinfo but **cores** is modified each time while loop iterates. i am not able to think of anything that may cause this. any help of any sort is appreciated. #include <stdio.h> #include … |
| | evrything was fine until i inserted 100 to 125 lines in code. i am wondering what kv is doing wrong as it is not even printing that version file was opened.. any sort of help is appreciated. files included in the code are given below for reference. proc/version file: ** … |
| | Hey guys, Here's what I have to do: *Write a program that displays the table of Fahrenheit - Celsius temperatures. The formula is : C = (5/9) (F-32) C - Celsius, F- Fahrenheit The range should be: 0 - 200, where as the step should be set to 20. The … |
| | Here is the c code:- #include<stdio.h> #include<stdlib.h> #include<string.h> int main(int argc,char *argv[]){ if(argc==1){ //default printf("first version\n"); int i,j,k; char line[1024],*str1,*str,str2[1024],ch; FILE *in=fopen("/proc/cpuinfo","r"); i=0; while((fgets(line,1024,in))!=NULL){ // printf("%s",line); str=strtok(line, " :"); if(str!=NULL){ //point 1 if(strcmp(str,"model")==0){ printf("%d %s\n",i,str); //point 2 str=strtok(NULL, " :"); printf("%s\n",str); //printing "name" if(strcmp(str,"name")==0) //point 3 printf("CPU Model:=%s\n",strtok(NULL,":")); } else … |
| | Hi All , This is my code snippet [CODE]typedef struct { char *name; } CELL; typedef struct { CELL *cell; char *name; } INST ; int main () { INST **top_inst_list ; int i,j; char string_name[100]; printf("Enter number of insts in design\n") ; scanf("%d",&i); top_inst_list = (INST **)malloc(sizeof(INST*)*i) ; for … |
| | Using C-Programming nested for() loops, write a program that displays all possible combinations of a 6 bit binary number. **Sample Run: 000000, 000001, 000010, 000011, ...........111110, 111111** Can anybody please help me in solving this question? |
| | any idea on how to change strcpy in c++ int main() { //all the winning combination strcpy(winKey[1].key, "123"); strcpy(winKey[2].key, "456"); strcpy(winKey[3].key, "789"); strcpy(winKey[4].key, "147"); strcpy(winKey[5].key, "258"); strcpy(winKey[6].key, "369"); strcpy(winKey[7].key, "159"); strcpy(winKey[8].key, "357"); } |
| | Got some homework here that I need help with. I've been struggling with trying to get the program to pick out the numbers and compare them using "<" and ">" Write a program that gets a list of integers from the user and computes the minimal and maximal number appearing … |
| | main() { int x=20,y=35; x=y++ + x++; y= ++y + ++x; printf(“%d%dn”,x,y); } what would be the output? can some one explain it with associativity and operator precendence |
| | # Help me in solving this puzzle people # Interviewstreet Challenge • Challenges /Manipulative Numbers • Rank: 103 Score: 717.63 Suppose that A is a list of n numbers ( A1, A2, A3, ... , An) and B ( B1, B2, B3, .. ,Bn ) is a permutation of these … |
| | Hello, guys! I have the following code:[CODE]#include<stdio.h> #include<string.h> #include<stdlib.h> struct list_word { char word[64]; struct list_word * next; }; typedef struct list_word itemWord; int main() { itemWord * curr, * head; fill list with words [B]remove duplicates[/B] show final list of words return(0); }[/CODE]So I experience difficulties when implementing the …  |
| | #include <stdio.h> #include <stdlib.h> long i,j,k,*ni,qi,a,*arr,n,q,p,no,c=0,m,max=0; int main() { ni = malloc(sizeof(long) * 100000); arr=malloc(sizeof(long)*10000); scanf("%ld",&no); for(i=1;i<=no;i++) { scanf("%ld %ld",&n,&qi); for(j=1;j<=n;j++) { scanf("%ld",&ni[j]); } for(k=1;k<=qi;k++) { scanf("%ld %ld %ld",&a,&p,&q); while(p<=q) { arr[++c]=ni[p++]^a; } for(m=1;m<=c;m++) { if(arr[m]>max) { max=arr[m]; } } printf("\n%ld",max); max=0; c=0; } } return 0; } Bold Text … |
| | Hi, I have a homework to do for college, which asks me to write a pascal lexical analizer in C. I'm trying to figure out the best way to ignore the comments, so far I've written this code, which works, but I would like to know if there is an … |
| | int a; scanf("%c",&a); printf("%d",a); i/p:12,13,14,15,16 o/p:1963761201 i/p:65 o/p:1963761206 Please explain to the reason for this output? |
| | while((c=getch())!=13) { pass[z++]=c; printf("%c",'*'); } I used this while loop to take the input of the password. Everything works fine until no "wrong" key is pressed. the problem is, suppose, if i press a wrong key n i want to delete it (backspace) then even backspace is taken as a … |
| | I have a a few callback functions. i need to register them as a list. And callback all the registered functions in a main after a certain task is done. I am new to callback functions. Please shed some insight on this xcallback(register_callbackfunctions); ycallback(register_callbackfunctions); register_callbackfunctions()//not too sure what goes in … |
| | we are getting i/p of 5,00,000 numbers ranging from 0 to 10^9 one by one. all numbers appears twice except one. We have to tell that number in the most efficient way. Any idea or just a hint to get this ? no code, no algo nothing i want. i … |
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