Compilare: main.cpp: In member function 'matrice& matrice::operator*=(matrice)': main.cpp:175:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:182:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("hprob.in","r",stdin); ^ main.cpp:183:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n",&t); ^ main.cpp:186:55: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %f %f %f\n",&vizitatori,&p1,&p2,&p3); ^