Compilare: user.cpp: In function ‘int main()’: user.cpp:31:13: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i = x + 1; i <= stklen; ++i) ^~~ user.cpp:33:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ stklen -= x; ^~~~~~ user.cpp:16:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:19:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &comm, &x); ^