Compilare: main.cpp: In function 'int main()': main.cpp:185:26: warning: unused variable 'i1' [-Wunused-variable] int t , i , j , lg , i1; ^~ main.cpp:183:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nambartiori.in" , "r" , stdin); ^ main.cpp:184:46: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nambartiori.out" , "w" , stdout); ^ main.cpp:186:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d" , &t); ^ main.cpp:189:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &n , &k); ^ main.cpp: In function 'int bs()': main.cpp:170:12: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized] return last; ^~~~