Compilare: main.cpp: In function 'int main()': main.cpp:43:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("puzzle3.in", "r", stdin) ; ^ main.cpp:44:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("puzzle3.out", "w", stdout) ; ^ main.cpp:27:19: warning: 'digit' may be used uninitialized in this function [-Wmaybe-uninitialized] digit = digit * BAZA + transport[i] ; ~~~~~~^~~~~~ main.cpp:25:7: note: 'digit' was declared here int digit, aux ; ^~~~~