题解 | #走方格的方案数#
走方格的方案数
https://www.nowcoder.com/practice/e2a22f0305eb4f2f9846e7d644dba09b
动态规划解题 注意是沿着边缘线走 完整代码如下：
const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;
void async function () {
// Write your code here
while(line = await readline()){
let [m, n] = line.split(' ').map(Number);
let dp = Array(m+1).fill(0).map(() => new Array(n+1).fill(1));
for (let i = 1; i <= m; i++) {
for (let j = 1; j <= n; j++) {
dp[i][j] = dp[i-1][j] + dp[i][j-1]
}
}
console.log(dp[m][n])
}
}()
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