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【Project Euler】Problem 13: 大きな数の合計

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  • 本記事はProjectEulerの「100番以下の問題の説明は記載可能」という規定に基づいて回答のヒントが書かれていますので、自分である程度考えてみてから読まれることをお勧めします。

問題 13.大きな数の合計

原文 Problem 13: Large sum

問題の要約:100個の50桁の数の合計の最初の10桁を求めよ

これもPythonのように桁数制限がないと簡単ですね。

print(f"Answer : {str(sum((list(map(int,list(ln.split()))))))[:10]}")
ln = "37107287533902102798797998220837590246510135740250 "\
"46376937677490009712648124896970078050417018260538 "\
"74324986199524741059474233309513058123726617309629 "\
"91942213363574161572522430563301811072406154908250 "\
"23067588207539346171171980310421047513778063246676 "\
"89261670696623633820136378418383684178734361726757 "\
"28112879812849979408065481931592621691275889832738 "\
"44274228917432520321923589422876796487670272189318 "\
"47451445736001306439091167216856844588711603153276 "\
"70386486105843025439939619828917593665686757934951 "\
"62176457141856560629502157223196586755079324193331 "\
"64906352462741904929101432445813822663347944758178 "\
"92575867718337217661963751590579239728245598838407 "\
"58203565325359399008402633568948830189458628227828 "\
"80181199384826282014278194139940567587151170094390 "\
"35398664372827112653829987240784473053190104293586 "\
"86515506006295864861532075273371959191420517255829 "\
"71693888707715466499115593487603532921714970056938 "\
"54370070576826684624621495650076471787294438377604 "\
"53282654108756828443191190634694037855217779295145 "\
"36123272525000296071075082563815656710885258350721 "\
"45876576172410976447339110607218265236877223636045 "\
"17423706905851860660448207621209813287860733969412 "\
"81142660418086830619328460811191061556940512689692 "\
"51934325451728388641918047049293215058642563049483 "\
"62467221648435076201727918039944693004732956340691 "\
"15732444386908125794514089057706229429197107928209 "\
"55037687525678773091862540744969844508330393682126 "\
"18336384825330154686196124348767681297534375946515 "\
"80386287592878490201521685554828717201219257766954 "\
"78182833757993103614740356856449095527097864797581 "\
"16726320100436897842553539920931837441497806860984 "\
"48403098129077791799088218795327364475675590848030 "\
"87086987551392711854517078544161852424320693150332 "\
"59959406895756536782107074926966537676326235447210 "\
"69793950679652694742597709739166693763042633987085 "\
"41052684708299085211399427365734116182760315001271 "\
"65378607361501080857009149939512557028198746004375 "\
"35829035317434717326932123578154982629742552737307 "\
"94953759765105305946966067683156574377167401875275 "\
"88902802571733229619176668713819931811048770190271 "\
"25267680276078003013678680992525463401061632866526 "\
"36270218540497705585629946580636237993140746255962 "\
"24074486908231174977792365466257246923322810917141 "\
"91430288197103288597806669760892938638285025333403 "\
"34413065578016127815921815005561868836468420090470 "\
"23053081172816430487623791969842487255036638784583 "\
"11487696932154902810424020138335124462181441773470 "\
"63783299490636259666498587618221225225512486764533 "\
"67720186971698544312419572409913959008952310058822 "\
"95548255300263520781532296796249481641953868218774 "\
"76085327132285723110424803456124867697064507995236 "\
"37774242535411291684276865538926205024910326572967 "\
"23701913275725675285653248258265463092207058596522 "\
"29798860272258331913126375147341994889534765745501 "\
"18495701454879288984856827726077713721403798879715 "\
"38298203783031473527721580348144513491373226651381 "\
"34829543829199918180278916522431027392251122869539 "\
"40957953066405232632538044100059654939159879593635 "\
"29746152185502371307642255121183693803580388584903 "\
"41698116222072977186158236678424689157993532961922 "\
"62467957194401269043877107275048102390895523597457 "\
"23189706772547915061505504953922979530901129967519 "\
"86188088225875314529584099251203829009407770775672 "\
"11306739708304724483816533873502340845647058077308 "\
"82959174767140363198008187129011875491310547126581 "\
"97623331044818386269515456334926366572897563400500 "\
"42846280183517070527831839425882145521227251250327 "\
"55121603546981200581762165212827652751691296897789 "\
"32238195734329339946437501907836945765883352399886 "\
"75506164965184775180738168837861091527357929701337 "\
"62177842752192623401942399639168044983993173312731 "\
"32924185707147349566916674687634660915035914677504 "\
"99518671430235219628894890102423325116913619626622 "\
"73267460800591547471830798392868535206946944540724 "\
"76841822524674417161514036427982273348055556214818 "\
"97142617910342598647204516893989422179826088076852 "\
"87783646182799346313767754307809363333018982642090 "\
"10848802521674670883215120185883543223812876952786 "\
"71329612474782464538636993009049310363619763878039 "\
"62184073572399794223406235393808339651327408011116 "\
"66627891981488087797941876876144230030984490851411 "\
"60661826293682836764744779239180335110989069790714 "\
"85786944089552990653640447425576083659976645795096 "\
"66024396409905389607120198219976047599490197230297 "\
"64913982680032973156037120041377903785566085089252 "\
"16730939319872750275468906903707539413042652315011 "\
"94809377245048795150954100921645863754710598436791 "\
"78639167021187492431995700641917969777599028300699 "\
"15368713711936614952811305876380278410754449733078 "\
"40789923115535562561142322423255033685442488917353 "\
"44889911501440648020369068063960672322193204149535 "\
"41503128880339536053299340368006977710650566631954 "\
"81234880673210146739058568557934581403627822703280 "\
"82616570773948327592232845941706525094512325230608 "\
"22918802058777319719839450180888072429661980811197 "\
"77158542502016545090413245809786882778948721859617 "\
"72107838435069186155435662884062257473692284509516 "\
"20849603980134001723930671666823555245252804609722 "\
"53503534226472524250874054075591789781264330331690"

(開発環境:Google Colab)

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