C program that reads a file containing integers and appends at its end the sum of all the integers

File Handling

#include<stdio.h> #include<conio.h> #include<process.h> main() { int a,i,n,sum=0; FILE *fp; clrscr(); //Writing numbers to the file fp=fopen(“DATA”,”w”); if(fp==NULL) { printf(“File could not open!!”); exit(0); } printf(“How many numbers?”); scanf(“%d”,&n); printf(“Enter numbers in the file:n”); for(i=0;i<n;++i) { scanf(“%d”,&a); putw(a,fp); } fclose(fp); //Reading the file and doing sum fp=fopen(“DATA”,”r”); if(fp==NULL) { printf(“File could not open!!”); exit(0); } while((a=getw(fp))!=EOF) …

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C program to read integer numbers from a file named DATA and then write all odd numbers to a file named ODD and all even numbers to a file named EVEN

File Handling

#include<stdio.h> #include<conio.h> #include<process.h> void main() { int a,n,i; FILE *fp1,*fp2,*fp3; clrscr(); fp1=fopen(“DATA”,”w”); if(fp1==NULL) { printf(“File could not open!!”); exit(0); } printf(“How many numbers?”); scanf(“%d”,&n); printf(“Enter contents of DATA file:n”); for(i=0;i<n;++i) { scanf(“%d”,&a); putw(a,fp1); } fclose(fp1); fp1=fopen(“DATA”,”r”); fp2=fopen(“ODD“,”w”); fp3=fopen(“EVEN”,”w”); if(fp1==NULL||fp2==NULL||fp3==NULL) { printf(“File could not open!!”); exit(0); } while((a=getw(fp1))!=EOF) { if(a%2!=0) putw(a,fp2); else putw(a,fp3); } fclose(fp1); fclose(fp2); …

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5 Best Online Compilers

Programming

Here you will get list of 5 best online compilers. Are you getting bored of using c, c++, java or any other compilers in your computer? If yes then here I come with a solution. In this article I am going to share some websites that provide facility to compile and run programs of different …

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C++ program to find cube of a number using macros

Simple

Also Read: C++ program to swap two numbers using macros Also Read: C++ Program to find cube of a number using function #include<iostream.h> #include<conio.h> #define CUBE(x) (x*x*x) void main() { clrscr(); int n,cube; cout<<“Enter a number:”; cin>>n; cube=CUBE(n); cout<<“Cube=”<<cube; getch(); }

C program to count number of words in a string

String

#include<stdio.h> #include<conio.h> void main() { int i,words=1; char str[100]; clrscr(); printf(“Enter a string:”); gets(str); for(i=0;str[i]!=’’;++i) if(str[i]==’ ‘) words++; printf(“No. of words are %d”,words); getch(); }