Compilare: user.cpp: In function ‘int main()’: user.cpp:30:40: warning: operation on ‘last’ may be undefined [-Wsequence-point] next[st[last]] = st[last--] + 1; ^ user.cpp:22:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d", &n, &k, &s); ^ user.cpp:24:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d", &h[i]); ^