foo.cc: In function 'int main()':
foo.cc:8:15: error: expected primary-expression before '%' token
    8 | scanf("%d %d",%x1,%x2);
      |               ^
foo.cc:8:19: error: expected primary-expression before '%' token
    8 | scanf("%d %d",%x1,%x2);
      |                   ^
foo.cc:16:12: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
   16 | printf(  x1+x2 );
      |          ~~^~~
      |            |
      |            int
In file included from foo.cc:1:
/nix/store/1x86jfiwsp5qi448fcdkkzn7vmx4krv2-glibc-2.35-163-dev/include/stdio.h:356:43: note:   initializing argument 1 of 'int printf(const char*, ...)'
  356 | extern int printf (const char *__restrict __format, ...);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
foo.cc:16:18: error: expected '}' at end of input
   16 | printf(  x1+x2 );
      |                  ^
foo.cc:9:9: note: to match this '{'
    9 | while(1){
      |         ^
foo.cc:16:18: error: expected '}' at end of input
   16 | printf(  x1+x2 );
      |                  ^
foo.cc:4:1: note: to match this '{'
    4 | {
      | ^

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