Compilare: user.cpp: In function ‘int main()’: user.cpp:19:16: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[60000]’ [-Wformat=] scanf("%s", &s); ^ user.cpp:32:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] used[endC]++; ^ user.cpp:34:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (used[endC] == 1) { ^ user.cpp:41:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] used[startC]--; ^ user.cpp:42:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (used[startC] == 0) { ^ user.cpp:29:8: warning: unused variable ‘startC’ [-Wunused-variable] char startC = s[start]; ^~~~~~ user.cpp:14:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.in", "r", stdin); ^ user.cpp:15:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("teatru.out", "w", stdout); ^ user.cpp:17:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &c); ^ user.cpp:19:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", &s); ^