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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. printf("test\n");
  5. putchar(48,48);/*対照実験*/
  6. printf();/*対照実験*/
  7. return 0;
  8. }
Compilation error #stdin compilation error #stdout 0s 0KB
stdin
Standard input is empty
compilation info
prog.c: In function ‘main’:
prog.c:5: error: too many arguments to function ‘putchar’
prog.c:6: error: too few arguments to function ‘printf’
stdout
Standard output is empty