Compilare: main.cpp: In function 'int main()': main.cpp:16:36: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=] scanf("%llf %llf",&v1[i],&v2[i]); ^ main.cpp:16:36: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=] main.cpp:12:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("aria.in","r",stdin); ^ main.cpp:13:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("aria.out","w",stdout); ^ main.cpp:16:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%llf %llf",&v1[i],&v2[i]); ^