Compilare: user.cpp: In function ‘int main()’: user.cpp:58:17: warning: unused variable ‘k1’ [-Wunused-variable] int n1,n2,i,k1 = 1,k2 = 1,k = 1,st,dr,mij,poz,n_new = 0,new_coef = 1; ^ user.cpp:58:24: warning: unused variable ‘k2’ [-Wunused-variable] int n1,n2,i,k1 = 1,k2 = 1,k = 1,st,dr,mij,poz,n_new = 0,new_coef = 1; ^ user.cpp:57:43: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interclasare.out","w",stdout); ^ user.cpp: In function ‘char getChar(FILE*)’: user.cpp:16:31: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, 1, BUF_SIZE, f); ^