Compilare: main.cpp: In function 'int read()': main.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:46:9: warning: unused variable 'a' [-Wunused-variable] int a = 3; int b = 2; ^ main.cpp:46:20: warning: unused variable 'b' [-Wunused-variable] int a = 3; int b = 2; ^ main.cpp: In function 'void Read(int&)': main.cpp:24:42: 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:29:42: 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:43:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("orase2.out", "w", stdout); ^ main.cpp:58:11: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d", (int)ans); ~~~~~~^~~~~~~~~~~~~~~~ main.cpp:53:17: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] tp[poz].v++; ~~~~~~~~^