Défi n°5 : César

25 points

César envoit des messages codés à ses généraux. Voici 10 messages que nos services ont interceptés :

1. Bflp bftopx losfn apcprctylct Czxlp gtopmlefc ypn zqqpccp dpdp yzdectd dpcxzytmfd, pe tdel xlitxp aczaepc wtxlelx bflyolx pe cpcfx pe gpcmzcfx epyftelepx.


2. Nadw Mxfqdgy euszuruomdu upqy, gf eu puoqdqfgd, arruoum yqpum ayzum mgf bxqdmcgq eqdhmzfqy huhqdq.


3. Jvu vjk wfidr vzlj uzjtzgczerv, jztlk wviv tvkvirild, kizgcvo: ler grij vjk erklirv, uzjjviveuz rckvir, mzmveuz kvikzr.


4. Cgum paxadu zaz haxgbfme oazfdmdum qef, eqp paxadue bduhmfua.


5. Hcdlmd, ptnc htbtmcd? Ctn Qdfdr: bnmrsqtbshn hmsdqqdsd.


6. Gkqc ybbq qhtudjyi qcehui unsyjqhuj iky! Skh jqdtuc? Gkyi uij jqc tyiiycybu xecydy.


7. Koumc yai cx wolyg, kocx cffy ucun uon hyayn.


8. Zmshptnqtl ztsdl rdmsdmshzl Zmshnbgtr mnrsdq lhgh uhcdstq odqrdpth chkhfdmshrrhld, ptzl dzmcdl Zqhrsnsdkh ethrrd ds Onkdlnmhr cnbds.


9. Wgeizspe xvmfyryw tpifmw jivvix eh tpifiq zippirxri hi ie vi uyeivm.


10. Mlpq bkfj Zeovpfmmrj brj klk pxkb bpq afpmrqxqrj.