Compilare: main.cpp: In function 'int main()': main.cpp:45:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("transport.in","r",stdin); ^ main.cpp:46:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("transport.out","w",stdout); ^ main.cpp:48:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ main.cpp:51:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ main.cpp:54:8: warning: 'smax' may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d",binarySearch_left(1,smax)); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~