不知道哪里有问题, 不输出
题目在上一集, 是照着这集写的https://www.bilibili.com/video/BV1ET4y1U7T6?p=3&share_source=copy_web代码 : #include <bits/stdc++.h>
using namespace std;
int process2(int cur, int rest, int aim, int n, vector<vector<int>> &dp){
if(dp != -1){
return dp;
}
int ans = 0;
if(rest == 0){
if(cur == aim){
ans = 1;
}
else{
ans = 0;
}
}
else{
if(cur == 1){
ans = process2(cur + 1, rest , aim, n, dp);
}
else if(cur == n){
ans = process2(cur - 1, rest , aim, n, dp);
}
else{
ans = process2(cur + 1, rest , aim, n, dp) + process2(cur - 1, rest , aim, n, dp);
}
}
dp = ans;
return ans;
}
int main(){
ios::sync_with_stdio(false);
vector<vector<int>> dp(5, vector<int>(5, -1));
int m = process2(2, 4, 4, 4, dp);
cout << m << endl;
return 0;
}
不知道为啥 , 它就是不输出了...
求助{:10_266:}
页:
[1]