Compilare: user.cpp: In function ‘void afiseaza(std::stack<long long int>)’: user.cpp:12:17: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d ",a); ^ user.cpp: In function ‘int main()’: user.cpp:69:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(w);i++){ ^ user.cpp:88:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=i+1;j<strlen(w);j++){ ^ user.cpp:64:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.in", "r", stdin); ^ user.cpp:65:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.out", "w", stdout); ^ user.cpp:67:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",w); ^