Compilare: main.cpp: In function 'void get_sol(int, int, int, int)': main.cpp:82:25: warning: unused variable 'last' [-Wunused-variable] int numarator , i , last; ^~~~ main.cpp: In function 'int main()': main.cpp:144:31: warning: unused variable 'dif' [-Wunused-variable] int t , i , j , lg , i1 , dif; ^~~ main.cpp:142:44: 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:143:46: 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:145:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d" , &t); ^ main.cpp:148:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &n , &k); ^