Compilare: user.cpp: In function ‘int main()’: user.cpp:41:37: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[10]’ [-Wformat=] scanf("%d %d %s", &x, &y, &s); ^ user.cpp:42:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = p[s[0]] + p[s[1]] * 5 + p[s[2]] * 25 + p[s[3]] * 125; ^ user.cpp:42:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = p[s[0]] + p[s[1]] * 5 + p[s[2]] * 25 + p[s[3]] * 125; ^ user.cpp:42:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = p[s[0]] + p[s[1]] * 5 + p[s[2]] * 25 + p[s[3]] * 125; ^ user.cpp:42:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] c = p[s[0]] + p[s[1]] * 5 + p[s[2]] * 25 + p[s[3]] * 125; ^ user.cpp:58:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < g[x].size(); ++i) ^ user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.in", "r", stdin); ^ user.cpp:35:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ninjago.out", "w", stdout); ^ user.cpp:37:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &tt, &n, &m); ^ user.cpp:41:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %s", &x, &y, &s); ^