Compilare: main.cpp: In function 'long long int binarySearch(int)': main.cpp:26:25: warning: unused variable 'mid' [-Wunused-variable] 26 | int st = 1, dr = n, mid, ans; | ^~~ main.cpp:38:12: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 38 | return ans; | ^~~ main.cpp:26:30: note: 'ans' was declared here 26 | int st = 1, dr = n, mid, ans; | ^~~ In function 'long long int binarySearch(int)', inlined from 'int main()' at main.cpp:72:33: main.cpp:38:12: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 38 | return ans; | ^~~ main.cpp: In function 'int main()': main.cpp:26:30: note: 'ans' was declared here 26 | int st = 1, dr = n, mid, ans; | ^~~