Compilare: main.cpp: In function 'int Solve(int, int, int)': main.cpp:14:53: warning: control reaches end of non-void function [-Wreturn-type] return Solve(mid, l - mid, c - mid) + 3 * ord ; } ^ main.cpp: In function 'int main()': main.cpp:17:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("z.in", "r", stdin) ; ^ main.cpp:18:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("z.out", "w", stdout) ; ^ main.cpp:20:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &k) ; ^ main.cpp:22:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &l, &c) ; ^