19,876 Topics
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| | http://www.codechef.com/problems/NUKES I'm getting time limit exceeded in my code... Please some one help me out with this code. My algorithm is when A - ((N+1) ^ (p+1)) < 0 then pth chamber will have 1 particle and the new value of A in my recursive function is A - ((N+1) …  |
| | Hello, Can anybody help me in this program. [B]Write a C program to find the square root of a given number?[/B] I can understand only C and please i need answer in C only. In this question i should not use function and i have to write a code for … |
| | Hey guys, I'm loading from a dictionary with a variable called "buffer". I'm trying to copy "buffer" in to another array word for word. For some reason, when I try using `strncpy()`, it yields a segfault. Here is my code (assuming "LETTERS" is 29: bool load(string filename) { // open … |
| | Ok so for extra credit in my software/hardware design class I have to locate duplicate entries in a defined string matrix. I am really close but having trouble. Case 3 is where I am trying to acomplish the goal. Any tips? My problem is that while it will print duplicates, … |
 | I'm new to network programming. And I skimmed a few pages of beej programming guide and found some useful info but couldn't clear one doubt. We use bind to associate a sockaddr_in structure with the socket descriptor so that the kernel can send data to the network adapter and thereby … |
| | how can i make a program that will input a number and convert it into a word using array , and also not using string.h library?  |
| | In this assignment the user has to input a matrix and then the program has to show that matrix and the transpose of it. I've got that part running. My teacher added a tweak. Basically when the user inputs the matrix the program has to only ask the number of … |
| | Write a program (in a single .c file) with a queue of strings implemented using array. You should write ite a queue type. The program reads a set of strings stored in a file (filename given on command line as argument) and inserts each string in the queue. Then it …  |
| | so i have to make a "Space invaders" like game (just a simple one though) but i dont know what codes should i use this is the code : void movingX() { int xcol = 1, xrow = 1; int ycol = 40, yrow = 24; int xbombcol = xcol, … |
| | I am currently in an introductory c++ class and am working assignment that sorts data. We recently covered structs and I decided to use structs to approach the problem rather than create 3 arrays to hold the information from our data file. The trouble i'm having is when i'm trying … |
 | Given 3 arrays,one accepting Strings the rest integers,lets say:A1[ ],A2[ ],A3[ ]. We get the difference of each element of A2[ ] and A3[ ] to a previously define values. take for example this code: //preference.c #include<stdio.h> #include<string.h> typedef char * string; //for STRINGS char name; int test; // number …  |
| | Could someone PLEASE HELP ME!!! :( I need to write a program that reads an integer matrix A from standard input and outputs the input matrix and the transpose. The input matrix A is limited to have at most 10 rows and 10 columns. Given a matrix A has m … |
| | I am trying to write a program to copy the contents of one stack to another. The following is the code that I came up with. It give me some syntax errors but I cannot seems to see any. Can anyone help ? //Defining what libraries should be included. #include …  |
| | Hey guys, I'm working with `strchr` and, for some reason, am getting a segfault. My program takes a string, iterates through the characters of that string, and adds a score to the "game" based on what letter the current character is. That sounds complicated, but my code will explain it: … |
| | I am doing something wrong, I have tried for two days and I still cannot figure it out. Can someone help me? Thank you. [code] #include <iostream> #include <iomanip> #include <cmath> using namespace std; void instructUser(); double doDivideZero(double &); int main() { instructUser(); double displayedVal; double newEntry; char command_character ; … |
| | Hi guys, I am trying to write a program that takes in a file, which has the last name first name and grade of a student. I then need to sort the grades from highest score to lowest with the corresponding names and then calculate the average grade. I have … |
| | main() { FILE *file = fopen ("COMMAND.txt", "r"); FILE *file1 = fopen ("LOG.log", "a"); if (file != NULL) { char line [255]; /* Max line Size*/ while (fgets (line, sizeof line, file ) != NULL) /* Reading a line */ { char first[10]; if (sscanf(line, "%9s", first) ==1) { fprintf(file1, … |
| | #include <stdio.h> #include<conio.h> #include<alloc.h> struct data { int value; struct data *next; }; int main() { int s; struct data *m,*i; printf("enter the data: "); scanf("%d",&s); i=(struct data *)malloc(size of(struct data); i->value=s; i->next=m; m=i; printf("enter the 2nd data: "); scanf("%d",&s); i=(struct data *)malloc(size of (struct data); i->value=s; i->next=m; m=i; printf("\n … |
| | Im trying to implement a program that will check the descriptions of two FA and check if they are equivalent. Im assuming (for simplicity) that each FA is in minimal form, the input alphabet is {a b} and each FA only has one finish state. Format for an FA is … |
| | I'm working with some old code and the users tell me that the original program's output was a single binary file containing multiple stuct data. The output I get is a binary file containing a single structure. The comment also indicates that this what is happening but I need to … |
 | hey, i want to do a question in which i am given n line segments and i want to find the number of intersection of them. Can anyone tell me the most efficient way i can do it ? I have got some links on google and also from books … |
| | SOLENN AND HER SUITORS Solenn has many suitors. To pick a partner, she has the following criteria: her partner's height and weight must be close to hers. Her suitors also want to know how many suitors ranked ahead of them (maybe they want to "get rid" of the other suitors?). … |
| | I want to write a program that does the following: reads and integer matrix from stdin and outputs the input matrix, its transpose and multiplication of the input matrix with its transpose. I limited the matrix to a 10x10. I want to ask the user to enter a number of … |
 | I was trying to understand how BITWISE OR works in C, and while looking on the web I found an explanation on msdn http://msdn.microsoft.com/en-us/library/17zwb64t.aspx But there I found this short i = 0xAB00; And I really don't know what this code does. I saw it for the first time and … |
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| | #include <stdio.h> #include <stdlib.h> int main() { int i,n,a=0,b=0,sum=0; printf("enter the limit of amstrong number: "); scanf("%d",n); for(i=1;i<=n;i++) { a=i; while(a>0) { b=n%10; sum=sum+ b*b*b; a=a/10; } if(sum==i) { printf("%d",sum); } } return 0; } it prints no errors but doest not work properly  |
 | i was watching [this video](http://www.youtube.com/watch?v=jTSvthW34GU&list=EC9D558D49CA734A02&index=2&feature=plpp_video) about type conversion and what the compiler does while converting from small byte formats to large byte formats(and vice versa) etc etc, and tried to write a code for it... but seems that function calls in my code are getting completely bypassed... once again, here … |
 | When we define a variable name using #define in macro like: #define BUFFER_SIZE buff 5, and then in our main function declare a variable which has the same name like: int buff=8, Does the second buff overwrite the first one? I mean generally is a macro definition considered related to … |
| | #include <stdio.h> #include <stdlib.h> int main() { int a=0,b=1,c=1,d=0,e=0,x,n; printf("enter the limit: "); scanf("%d",&n); while(d<=n) { d=a+b+c; a=b; b=c; c=d; e=a+b+c; for(x=d+1;x<d;x++) { if(x<=n) { printf("the non tribonacci series is: "); printf("\n %d",x); } } } return 0; } actually how to do this it doesnot print the values |
| | Hi guys I been programming in c++ for past 2 years and is fairly good with it. First of all I dont need the code or anything but need some resources which i can use to get the basic idea so I can start developing. Had been googling for the …  |
| | #include<stdio.h> #include<math.h> void getColorCode(char colorCode[]); long getResistorValue(char colorCode[]); int i,ch; long r_value=0; char ans; char j; char code; char colorCode[3]; int colorValue[3]; int main (void) { /* clrscr(); printf("\n\t\t\t\tRESISTANCE CALCULATOR"); printf("\n\t\t\t\t"); for(i=1;i<11;i++) { delay(10000); printf("*"); }*/ printf("\n1. START"); printf("\n2. QUIT"); printf("\nEnter your Choice(1-2):"); scanf("%d",&ch); clrscr(); switch(ch) { case 1: printf("*****************************************************\n\n"); … |
| | http://www.spoj.pl/problems/FP/ here is the link. Can anyone please give me the hint only that how greedy approach is following in this question ? It's strange to see how greedy is there in this question. just the hint of this. no code, nothing! thanks. |
| | I am making this two player simple game. I just need to make each of the player press a key any time not alternating from one another. Do I still use getch() for a solution? I have tried but the user still presses his/her assigned keys after the other presses … |
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 | I have a c# project to Create a console project named Cards that includes a struct Card, two classes Deck and Hand, and two enums: Rank and Suit. I attached a require output for this project. I have all my class but when I compile it only show the first …  |
| | hi everyone well I'm learning network programming currently , I've written a day time client and server but when I run the client it gives me a connection error . Here is my client code #include<sys/socket.h> #include<sys/types.h> #include<stdio.h> #include<netinet/in.h> #include<netdb.h> int main(int argc ,char *argv[]) { int sockfd, n; char … |
| | Following is my code for reading from a file. #include<stdio.h> int main() { char s[10][10]; int i=0,j=0; FILE *ptr=fopen("input.txt","r"); char c; while(fscanf(ptr,"%c",&c)!=EOF) { if(c=='\n') { s[i][j]=0; i++; j=0; } else { s[i][j]=c; j++; } } s[i][j]=0; fclose(ptr); for(j=0;j<i;j++) printf("%s\n",s[j]); return 1; } and content of input.txt is A->XAZ|Yz|z X->xZ|x Z->Xz … |
| | If a child process encounters exit(0) statement, where is this exit status returned in the parent process? Is there any variable associated with every process that holds this information? If not, how do children and parent processes communicate? |
 | Hello, is there any good tutorials,library for downloading a file? I have an application that has a check for update button. please help me with my project |
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| | #include<stdio.h> #define MOD 100000009 #define REP(i, n) for(i = 0; i < n; ++i) void mul(int a[2][2],int b[2][2]) { int i,j,k; int c[2][2]; for(i=0;i<2;i++) { for(j=0;j<2;j++) { c[i][j]=0; for(k=0;k<2;k++) { c[i][j]+=(a[i][k]*b[k][j]); } } } // matrix multiply i=0;j=0; REP(i,2) REP(j,2) b[i][j]=c[i][j]; // copying the value in back to b[][] return; … |
| | where is union required? please explain with an example where having union is a better choice than any data structure. |
| | i am writing this code for a school poject it gives mee segmentation fault .please help it scans iput of the form #include<stdio.h> #include<stdlib.h> struct time{ int hh,mm; }; struct date{ int day,month,year; }; struct student{ char firstname[20]; char lastname[20]; struct time entry; struct time leavetime; struct date dt; int … |
| | # code to convert any base input to any base output (base limited upto hexadecimal) # ## scanf() works , but gets() stops working from 2nd iteration ## *i apolozise beforehand for the length of this post, i hope there will be someone who'll bear with me :(* **here is … |
| | I am trying to make a calculator in C++ but I keep running into errors. Please help me. Here is the code: #include <iostream> #include <cmath> #include <string> using namespace std; int main() { //what the variables are double calculation; double sign; double number1; double number2; //the questions cout<<"Enter a … |
| | #include<stdio.h> int main() { char a[60][60],b[60][60],i=0,n1,m1,n2,m2; int x,y; int j=0; char c; int p=-1,q=-1,f=-1,g=-1; scanf("%d%d",&n1,&m1); for(i=1;i<=n1;i++) scanf(" %s",a[i]); scanf("%d%d",&n2,&m2); for(i=1;i<=n2;i++) scanf(" %s",b[i]); for(i=1;i<=n1;i++) { for(j=1;j<=m1;j++) { if(a[i][j]=='1') { p=i; q=j; break; } } if(p>0 || q>0) break; } for(i=1;i<=n2;i++) { for(j=1;j<=m2;j++) { if(b[i][j]=='1') { f=i; g=j; break; } } if(g!=-1 … |
| | I do not understand were I went wrong. 1st is this line: (it is saying that this (;) Error: excepted an expression) 2nd is this line: cout<<"\nRadius is " << radius << set(8)<< "PI is" <<PI; something is wrong with the second (<<) // Program illustrating the use if #defines …  |
| | The program is this : Write a program which takes 10 integer numbers from user. Save all the positive numbers to one file, all the negative numbersto another file. So,the coding will be compare all integers with 0 and save according in two different files right? If I am right … |
| | I'm trying to compile a program where i am using the libraries studio.h, math.h and conio.h when I try to use the gcc comand it says that conio.h " not such file or directory" |
| | this is a code from the book "the C programming language" by dennis ritchie, but for some reason its not working! #include <stdio.h> #define IN 1 /* inside a word */ #define OUT 0 /* outside a word */ /* count lines, words, and characters in input */ main() { … |
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