Compilare: user.cpp: In function ‘int main()’: user.cpp:16:10: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if(abs(a[j]-a[i])<minim) ^~ user.cpp:18:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ i=j;} ^ user.cpp:11:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&d); ^ user.cpp:13:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i]); ^