Compilare: user.cpp: In function ‘void incr(long long int&, int, int)’: user.cpp:54:25: warning: unused variable ‘ins’ [-Wunused-variable] long long inv = 0 , ins ; ^ user.cpp:55:9: warning: unused variable ‘a’ [-Wunused-variable] int a , b ; ^ user.cpp:55:13: warning: unused variable ‘b’ [-Wunused-variable] int a , b ; ^ user.cpp: In function ‘void rezolv()’: user.cpp:66:9: warning: unused variable ‘ct’ [-Wunused-variable] int ct = x - k - 2 , arj = 0 ; ^ user.cpp:66:26: warning: unused variable ‘arj’ [-Wunused-variable] int ct = x - k - 2 , arj = 0 ; ^ user.cpp: In function ‘int main()’: user.cpp:19:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "div4.in" , "r" , stdin ) ; ^ user.cpp:20:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "div4.out" , "w" , stdout ) ; ^ user.cpp: In function ‘void citire()’: user.cpp:28:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%s" , s ) ; ^ user.cpp:29:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf( "%d" , &k ) ; ^