题解 | #DNA序列#
DNA序列
https://www.nowcoder.com/practice/e8480ed7501640709354db1cc4ffd42a
读懂题目才是关键
let s = readline();
let n = +readline();
let l = s.length;
let max = 0;
let res = '';
for(let i = 0; i < l; i++) {
let str = s.substr(i, n);
let num = 0;
for(let j = 0; j < str.length; j++) {
if(str[j] == 'G' || str[j] == 'C') {
num++;
}
}
if(num > max) {
max = num;
res = str;
}
}
console.log(res);
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