Compilare: main.cpp: In function 'int read()': main.cpp:40:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int afis()': main.cpp:50:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int cswap(int)': main.cpp:60:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int lswap(int)': main.cpp:70:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void Read(int&)': main.cpp:25:42: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f, MAX, 1, IN), pos = 0; ^ main.cpp:30:42: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(f, MAX, 1, IN), pos = 0; ^ main.cpp: In function 'int main()': main.cpp:75:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("yinyang.out", "w", stdout); ^