I've a problem when I'm using "readln" after "readf" that I couldn't see my program rest and the lines of the execution ran fast:

module main;

import std.stdio;
import std.string;
import std.conv;

int main(string[] args)
{

    char[] yy;
    int x,y,z;


    writef("Enter a number: ");
    readf(" %d",&x);


    writef("Enter a number: ");
    readf(" %d",&y);

    z=x+y;
    writefln("Hi! %d",z);

    writef("Enter a number: ");
    readln(yy);
    yy = strip(yy);
    x=to!int(yy);

    writef("Enter a number: ");
    readln(yy);
    yy = strip(yy);
    y=to!int(yy);

    z=x+y;
    writefln("Hi! %d",z);

	return 0;
}

On Thursday, 21 September 2023 at 09:14:14 UTC, pascal111 wrote:

    char[] yy;
    int x,y,z;


    writef("Enter a number: ");
    readf(" %d",&x);


    writef("Enter a number: ");
    readf(" %d",&y);

    z=x+y;
    writefln("Hi! %d",z);

    writef("Enter a number: ");
    readln(yy);
    yy = strip(yy);
    x=to!int(yy);

    writef("Enter a number: ");
    readln(yy);
    yy = strip(yy);
    y=to!int(yy);

    z=x+y;
    writefln("Hi! %d",z);

	return 0;
}

Your readfs are not consuming the newline at the end. Add \n to the end of the format text.

-Steve

On Thursday, 21 September 2023 at 11:30:02 UTC, Steven Schveighoffer wrote:

[...]

It works fine now, thanks!