Compilare: main.cpp: In function 'int main()': main.cpp:99:23: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(mid>=l & mid<=r) mid=r+(mid-l+1); ~~~^~~ main.cpp:106:22: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(ot>=l & ot<=r) ot=r+(ot-l+1); ~~^~~ main.cpp:31:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dupadealuri.in","r",stdin); ^ main.cpp:32:42: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("dupadealuri.out","w",stdout); ^ main.cpp:34:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s+1); ^