Compilare: main.cpp: In function 'void read()': main.cpp:13:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d",&c,&l); ^ main.cpp:15:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&a[i]); ^ main.cpp: In function 'int find(int)': main.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] } ^