Compilare: user.cpp:4:16: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] #define Nmax 1 << 22 ^ user.cpp:7:8: note: in expansion of macro ‘Nmax’ bool v[Nmax + 5], ok, w[25]; ^ user.cpp: In function ‘int main()’: user.cpp:33:26: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘bool*’ [-Wformat=] scanf("%d", &w[i]) ^ user.cpp:10:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("coins.in", "r", stdin); ^ user.cpp:11:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("coins.out", "w", stdout); ^ user.cpp:27:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.cpp:34:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] , nb1 += w[i]; ^