Compilare: user.cpp: In function ‘int main()’: user.cpp:54:57: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100010]’ [-Wformat=] freopen("evaluare.in", "r", stdin); scanf("%s", &S); ^ user.cpp:54:39: 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); scanf("%s", &S); ^ user.cpp:54:58: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] freopen("evaluare.in", "r", stdin); scanf("%s", &S); ^ user.cpp:55:41: 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); printf("%lld\n", eval()); ^