foo.cc: In function 'int main()':
foo.cc:11:13: warning: unused variable 'k' [-Wunused-variable]
   11 |   int t=x%y,k;
      |             ^
foo.cc:6:16: warning: unused variable 'x1' [-Wunused-variable]
    6 |  long long x,y,x1,y1,a[100000]={0},b[100000]={},i,j,t1,t2,test=2;
      |                ^~
foo.cc:6:19: warning: unused variable 'y1' [-Wunused-variable]
    6 |  long long x,y,x1,y1,a[100000]={0},b[100000]={},i,j,t1,t2,test=2;
      |                   ^~
foo.cc:6:53: warning: unused variable 't1' [-Wunused-variable]
    6 |  long long x,y,x1,y1,a[100000]={0},b[100000]={},i,j,t1,t2,test=2;
      |                                                     ^~
foo.cc:6:56: warning: unused variable 't2' [-Wunused-variable]
    6 |  long long x,y,x1,y1,a[100000]={0},b[100000]={},i,j,t1,t2,test=2;
      |                                                        ^~

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