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トリボナッチ数列練習問題 #2486

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トリボナッチ数列練習問題 #2486

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35 changes: 21 additions & 14 deletions app.js
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Original file line number Diff line number Diff line change
@@ -1,16 +1,23 @@
'use strict';
const memo = new Map();
memo.set(0, 0);
memo.set(1, 1);
function trib(n) {
if (memo.has(n)) {
return memo.get(n);

const culcuMap = new Map() ;

culcuMap.set(0, 0) ;

culcuMap.set(1, 0) ;

culcuMap.set(2, 1) ;

function sumMap(n){
if( culcuMap.has(n) ){
return culcuMap.get(n) ;
}
const value = trib(n - 1) + trib(n - 2);
memo.set(n, value);
return value;
}
const length = 40;
for (let i = 0; i <= length; i++) {
console.log(trib(i));
}
const value = sumMap(n-1) + sumMap(n-2) + sumMap(n-3) ;
culcuMap.set(n , value) ;
return culcuMap.get(n) ;
};

const length = 40
for(let i = 0; i <= length ; i++ ){
console.log( sumMap(i) );
};