Compilare: user.cpp: In function ‘int main()’: user.cpp:50:26: warning: narrowing conversion of ‘k’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] mytype e = { k, i, j }; ^ user.cpp:50:26: warning: narrowing conversion of ‘i’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] user.cpp:50:26: warning: narrowing conversion of ‘j’ from ‘int’ to ‘char’ inside { } [-Wnarrowing] user.cpp:70:52: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d %d %d %d %d %d", nr[w[first ].second.a], nr[w[first ].second.b], nr[w[first ].second.c], ^ user.cpp:70:76: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d %d %d %d %d %d", nr[w[first ].second.a], nr[w[first ].second.b], nr[w[first ].second.c], ^ user.cpp:70:100: warning: array subscript has type ‘char’ [-Wchar-subscripts] printf("%d %d %d %d %d %d", nr[w[first ].second.a], nr[w[first ].second.b], nr[w[first ].second.c], ^ user.cpp:71:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] nr[w[second].second.a], nr[w[second].second.b], nr[w[second].second.c]); ^ user.cpp:71:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] nr[w[second].second.a], nr[w[second].second.b], nr[w[second].second.c]); ^ user.cpp:71:79: warning: array subscript has type ‘char’ [-Wchar-subscripts] nr[w[second].second.a], nr[w[second].second.b], nr[w[second].second.c]); ^ user.cpp:40:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("loto.in", "r", stdin); ^ user.cpp:41:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("loto.out", "w", stdout); ^ user.cpp:42:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &s); ^ user.cpp:44:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ", &nr[i]); ^ user.cpp:71:69: warning: ‘second’ may be used uninitialized in this function [-Wmaybe-uninitialized] nr[w[second].second.a], nr[w[second].second.b], nr[w[second].second.c]); ^