Compilare: user.cpp: In function ‘Ret sol(int, int, int)’: user.cpp:104:30: warning: narrowing conversion of ‘ok’ from ‘int’ to ‘bool’ inside { } [-Wnarrowing] return M[Map{n, s1, s2}] = {Sum, Nr, ok, 1}; ^ user.cpp: In function ‘void read()’: user.cpp:38:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &n, &k, &m); ^