Compilare: user.cpp: In function ‘int main()’: user.cpp:90:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] tmp[col[i]]+= siz[i]; ^ user.cpp:91:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (1 + tmp[col[i]] >= ant) { ^ user.cpp:94:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] ant = 1 + tmp[col[i]]; } } ^ user.cpp:96:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (auto i: v) tmp[col[i]] = 0; ^ user.cpp:49:9: warning: variable ‘lst’ set but not used [-Wunused-but-set-variable] int lst, nx, ny; ^ user.cpp:46:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.in", "r", stdin); ^ user.cpp:47:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ferma3.out", "w", stdout); ^ user.cpp:51:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &tsk, &n, &m); ^ user.cpp:53:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", mx[i] + 1); ^