prize.cpp: In function 'int find_best(int)':
prize.cpp:13:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
13 | vector<int> res = ask(l+r>>1);
| ~^~
prize.cpp:15:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
15 | return l+r>>1;
| ~^~
prize.cpp:16:28: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
16 | if(res[0] > res[1])r = (l+r>>1);
| ~^~
prize.cpp:17:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
17 | else l = (l+r>>1)+1;
| ~^~