{"title":"E. Two Arrays and Sum of Functions","width":"100%","author_url":"https://blog.hatena.ne.jp/peroon/","categories":[],"blog_title":"perogram","description":"\u89e3\u6cd5 E:(\u6700\u5c0f\u5316\u3059\u3079\u304d\u95a2\u6570)=(summation from i = 1 to n){i * (n + 1 - i) * a[i] * b[i]}\u306a\u306e\u3067\u3001i*(n+1-i)*a[i]\u304c\u5927\u304d\u3044\u3082\u306e\u304b\u3089\u9806\u306b\u5c0f\u3055\u3044b[i]\u3092\u3076\u3064\u3051\u308b\u2014 \u3053\u308b\u3068\u3093 (@kyort0n) 2019\u5e745\u670814\u65e5 E A[i]\u306f(i+1)*(n-i)\u56de\u305a\u3064\u4f7f\u308f\u308c\u308b\u306e\u3067\u3001A[i]\u306b\u304b\u3051\u3066\u304a\u304f\u3002\u305d\u306e\u30bd\u30fc\u30c8\u3068\u3001B\u306e\u5927\u304d\u3044\u9806\u30bd\u30fc\u30c8\u3092\u639b\u3051\u305f\u3082\u306e\u304c\u7b54\u3048\u3002F\u306f\u3001\u4f55\u65e5\u307e\u3067\u304a\u5e97\u3092\u4f7f\u3046\u304b\u8003\u3048\u308b\u3068\u3001\u5404\u30bf\u30a4\u30d7\u306b\u3064\u3044\u3066\u6700\u5f8c\u306b\u958b\u3044\u305f\u65e5\u3092\u4f7f\u3048\u3070\u6700\u5584\u306a\u306e\u3067\u3001\u4e8c\u5206\u63a2\u7d22\uff0b\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304b\u3068\u601d\u3063\u305f\u3093\u3060\u3051\u3069\u3001\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u90e8\u5206\u304c\u66f8\u3051\u305a\u7d42\u4e86\u3002\u2014 titia (\u2026","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/p/peroon/20190515/20190515044300.jpg","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperogram.hateblo.jp%2Fentry%2F2019%2F05%2F15%2F044949\" title=\"E. Two Arrays and Sum of Functions - perogram\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_name":"Hatena Blog","published":"2019-05-15 04:49:49","author_name":"peroon","provider_url":"https://hatena.blog","type":"rich","url":"https://perogram.hateblo.jp/entry/2019/05/15/044949","height":"190","blog_url":"https://perogram.hateblo.jp/"}