【一道很简单的ACM题,求大神看看我错在哪儿了,C++YoumusthaveheardofanancientencryptioncalledCaesarcipheror'shiftcipher'.Thatis,giventheplaintextandanumberD,youshouldreplaceeverycharactercintheplaintextwithan】

　　一道很简单的ACM题,求大神看看我错在哪儿了,C++

　　YoumusthaveheardofanancientencryptioncalledCaesarcipheror'shiftcipher'.Thatis,giventheplaintextandanumberD,youshouldreplaceeverycharactercintheplaintextwithanothercharacterwhichisDplacesaftercinthealphabet.Forexample,ifD=2,youshouldreplace'a'with'c',replace'b'with'd',...replace'y'with'a',andreplace'z'with'b'.

　　GiventheplaintextandD,youshouldoutputtheciphertext.

　　InputThefirstlineisanintegerT,thenumberoftestcases.ThenTcasesfollows.

　　Eachcasecontainsonlyoneline,consistsoftheplaintextandthenumberD,separatedbyaspace.Youcanassumethereareonlylowercaselettersintheplaintext,andthelengthisnomorethan100.0≤D>a)

　　{

　　for(i=0;i>s>>n;

　　intl=strlen(s);

　　for(intj=0;j