View Compilation Error

0_0_39017721_3843.cpp: In function 'int main()':
0_0_39017721_3843.cpp:31:44: error: expected '}' at end of input
   31 |                 for(int i = 1; i<=n; i++) {//
      |                                           ~^
0_0_39017721_3843.cpp:31:44: error: expected '}' at end of input
0_0_39017721_3843.cpp:20:37: note: to match this '{'
   20 |         while(~scanf("%d%d",&n,&m)) {
      |                                     ^
0_0_39017721_3843.cpp:31:44: error: expected '}' at end of input
   31 |                 for(int i = 1; i<=n; i++) {//
      |                                            ^
0_0_39017721_3843.cpp:19:12: note: to match this '{'
   19 | int main() {
      |            ^