Compilare: user.cpp: In function ‘int main()’: user.cpp:58:9: warning: unused variable ‘sum’ [-Wunused-variable] int sum,niv,i,j,ll,poz; ^ user.cpp:58:13: warning: unused variable ‘niv’ [-Wunused-variable] int sum,niv,i,j,ll,poz; ^ user.cpp:17:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.in" , "r" , stdin); ^ user.cpp:18:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.out", "w" , stdout); ^ user.cpp:20:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n",&caz,&n); ^ user.cpp:26:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",cc); ^ user.cpp:41:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",cuv[i]); ^