We can convert number to string using built in function itoa().

we can convert number to string using sprintf() function as shown below.

char result[100];
int num = 24;
sprintf( result,"%d",num);

even if we use printf with %s,the no is interpretted 4 string

#include<stdlib.h>
void main()
{
char s[10];
int a=4521;
itoa(a,s,10);
printf("%s",s);
}

#include <stdio.h>

int main(void)
{
const char base[] = "filename";
char filename [ FILENAME_MAX ];
int number = 42;
sprintf(filename, "%s%d", base, number);
printf("filename = "%s" ", filename);
return 0;
}

/* my output
filename = "filename42"
*/#include <stdio.h>

int main(void)
{
const char base[] = "filename";
char filename [ FILENAME_MAX ];
int number = 42;
sprintf(filename, "%s%d", base, number);
printf("filename = "%s" ", filename);
return 0;
}

/* my output
filename = "filename42"
*/

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