/in/foo.cc: In function 'int sort1(int*, int)':
/in/foo.cc:7:17: warning: unused variable 'tmp' [-Wunused-variable]
    7 |         int i,j,tmp=0;
      |                 ^~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:22:18: warning: unused variable 'm' [-Wunused-variable]
   22 |     int a[100],n,m,i,t=0,j=0;
      |                  ^
/in/foo.cc:22:22: warning: unused variable 't' [-Wunused-variable]
   22 |     int a[100],n,m,i,t=0,j=0;
      |                      ^