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The output will be 3.6 if you use
cout << setiosflags(ios::showpoint) << setprecision (2) << num
<< endl;
And output will be 3.60 if you use
cout << setiosflags(ios::fixed) << setprecision(2) << num
<< endl;
if you use cout << setiosflags(ios::fixed||ios::showpoint)
<< setprecision(2) << num << endl; , the output will be
3.60.
.
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