Compilare: main.cpp: In function 'int print_solutie_cu_2()': main.cpp:90:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int df(int)': main.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int solve_cu_1()': main.cpp:73:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:94:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ps.in","r",stdin); ^ main.cpp:95:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ps.out","w",stdout); ^ main.cpp:97:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&n, &m, &k); ^ main.cpp:100:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &x, &y); ^