View Compilation Error

0_0_32736527_18904.cpp: In function 'int main()':
0_0_32736527_18904.cpp:46:30: error: expected ')' before ';' token
  while (~scanf("%d %d",&n,&m);){
                              ^
0_0_32736527_18904.cpp:46:31: error: expected primary-expression before ')' token
  while (~scanf("%d %d",&n,&m);){
                               ^