printf integer

1/* printf example */
2#include <stdio.h>
3
4int main()
5{
6   printf ("Characters: %c %c \n", 'a', 65);
7   printf ("Decimals: %d %ld\n", 1977, 650000L);
8   printf ("Preceding with blanks: %10d \n", 1977);
9   printf ("Preceding with zeros: %010d \n", 1977);
10   printf ("Some different radices: %d %x %o %#x %#o \n", 100, 100, 100, 100, 100);
11   printf ("floats: %4.2f %+.0e %E \n", 3.1416, 3.1416, 3.1416);
12   printf ("Width trick: %*d \n", 5, 10);
13   printf ("%s \n", "A string");
14   return 0;
15}

1printf("hello");

1// Use %i or %d for a single decimal integer.
2// See https://www.cplusplus.com/reference/cstdio/printf/
3printf("%i\n", x);