#include<stdio.h>
#include<conio.h>
int main(void)
{
int i=1,n,t,j;
//clrscr(); //use clrscr to clean console screen in TurboC++
printf("Pick a number: \n");
scanf("%d",&n);
printf("Printing the triangle with * from 1 to %d line\n",n);
for (i=0,t=1,j=1;i<(n*(n+1)/2);i++)
{
if(i==t*(t+1)/2)
{
printf("\n");
t++;
}
printf("* ");
}
//getch(); //use getch() to hold console in TurboC++
}
#include<stdio.h>
#include<conio.h>
int main(void)
{
int i,n,t,j;
//clrscr(); //use clrscr to clean console screen in TurboC++
printf("Pick a number: \n");
scanf("%d",&n);
printf("Printing the number triangle from 1 to %d \n",n);
for (i=0,t=1,j=1;i<(n*(n+1)/2);i++)
{
if(i==t*(t+1)/2)
{
printf("\n");
t++,j=1;
}
printf("%5d",j++);
}
//getch(); //use getch() to hold console in TurboC++
}
#include<stdio.h>
#include<conio.h>
#include<math.h>
int main(void){
int i,j,k,m,n,t;
// clrscr(); // clrscr(); will work in TurboC++
printf("\n Enter your number: ");
scanf("%d",&n);
for(i=1-n;i<n;i++){
j=n-abs(i);
for(t=65,k=1,m=1-n;m<n;k++,t++,m++){
if(m>0){
k-=2;
t-=2;
}
if(i>0-n && i<n){
if(k>n-(j-1))
printf(" ");
else
printf("%3c",t);
}
}
printf("\n");
}
//getch(); //use this in TurboC++
}
char * filename ="D:\\File.txt"; // add \\ quote instead of single (\) for defining path.
char * filename2="D:\\TestFolder\\TestFile.txt"; // single (\) needed to terminate buy other single quote ( i.e. \\)Note:
FileVarriable– It is a variable which open file for reading/writing etc..
FileLocation– This variable keeps the file location.
fprintf function- sends formatted output to a stream.
fopen (FileLocation,”w+“)- Here w+ is the mode, which instruct the data to follow action accordingly.
“r” –Opens a file for reading. The file must exist.
“w” –Creates an empty file for writing. If a file with the same name already exists, its content is erased and the file is considered as a new empty file.
“a” –Appends to a file. Writing operations, append data at the end of the file. The file is created if it does not exist.
“r+” –Opens a file to update both reading and writing. The file must exist.
“w+” –Creates an empty file for both reading and writing.
“a+” –Opens a file for reading and appending.
