Compilare: main.cpp: In function 'int main()': main.cpp:8:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.in", "r", stdin); ^ main.cpp:9:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("euro2.out", "w", stdout); ^ main.cpp:69:19: warning: 'cm' may be used uninitialized in this function [-Wmaybe-uninitialized] sol1[cm]=nr; ~~~~~~~~^~~