Language: C++

#include <stdio.h>

int main(int argc, const char * argv[]){

           int  s,a,b;  //?????°?????£?¨?

           scanf("%f %f" &a, &b);   //??\????????????
           s=2*(a+b);
????????? printf("%d %d\n", a, b);

          return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:7:26: error: invalid operands of types 'const char [6]' and 'int' to binary 'operator&'
    7 |            scanf("%f %f" &a, &b);   //??\????????????
      |                  ~~~~~~~ ^~
      |                  |        |
      |                  |        int
      |                  const char [6]
a.cc:9:1: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      | ^
a.cc:9:2: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |  ^
a.cc:9:3: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |   ^
a.cc:9:4: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |    ^
a.cc:9:5: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |     ^
a.cc:9:6: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |      ^
a.cc:9:7: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |       ^
a.cc:9:8: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |        ^
a.cc:9:9: error: expected primary-expression before '?' token
    9 | ????????? printf("%d %d\n", a, b);
      |         ^
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token
a.cc:9:34: error: expected ':' before ';' token
    9 | ????????? printf("%d %d\n", a, b);
      |                                  ^
      |                                  :
a.cc:9:34: error: expected primary-expression before ';' token