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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.  
  5. int num = 23;
  6. float x;
  7. x = 4.56;
  8.  
  9. printf("Num is %d, x is %f\n" num, x);
  10.  
  11. return 0;
  12. }
  13.  
Compilation error #stdin compilation error #stdout 0s 9432KB
stdin
hello
compilation info
prog.c: In function ‘main’:
prog.c:9:32: error: expected ‘)’ before ‘num’
  printf("Num is %d, x is %f\n" num, x);
                                ^~~
prog.c:9:18: warning: format ‘%d’ expects a matching ‘int’ argument [-Wformat=]
  printf("Num is %d, x is %f\n" num, x);
                  ^
prog.c:9:27: warning: format ‘%f’ expects a matching ‘double’ argument [-Wformat=]
  printf("Num is %d, x is %f\n" num, x);
                           ^
prog.c:6:7: warning: variable ‘x’ set but not used [-Wunused-but-set-variable]
 float x;
       ^
prog.c:5:5: warning: unused variable ‘num’ [-Wunused-variable]
 int num = 23;
     ^~~
stdout
Standard output is empty