Compilare: main.cpp: In function 'int main()': main.cpp:8:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("text3.in","r",stdin); ^ main.cpp:9:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("text3.out","w",stdout); ^ main.cpp:23:47: warning: 'save2' may be used uninitialized in this function [-Wmaybe-uninitialized] if (nrc[save1-'a']+1>nrc[save2-'a']) ~~~~~^~~~ main.cpp:23:30: warning: 'save1' may be used uninitialized in this function [-Wmaybe-uninitialized] if (nrc[save1-'a']+1>nrc[save2-'a']) ~~~~~^~~~