View Compilation Error

0_0_39487791_14945.cpp: In function 'int main()':
0_0_39487791_14945.cpp:57:29: error: expected '}' at end of input
   57 |                 int l=0,r=0;// l:
      |                             ^
0_0_39487791_14945.cpp:50:9: note: to match this '{'
   50 |         {
      |         ^
0_0_39487791_14945.cpp:57:29: error: expected '}' at end of input
   57 |                 int l=0,r=0;// l:
      |                             ^
0_0_39487791_14945.cpp:47:1: note: to match this '{'
   47 | {
      | ^