求帮助，C++题豪华游轮！

Question

求帮忙！我代码这么写哪里错了啊？https://www.luogu.com.cn/problem/P2625这是题目的链接。

#include<iostream>
#include<cstdio>
#include <bits/stdc++.h>
#include<algorithm>
using namespace std;

const double p = 3.1415926535;
string s;
double ans, hd;
int n, f, b, sum = 1, x, c, minn = 1e9;
int a[200];
bool dp[400][400];

int main() 
{
    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        cin >> s;
        if (s == "right")
        {
            cin >> x;
            a[sum] = x % 360;
            sum++;
        }
        else if (s == "left")
        {
            cin >> x;
            a[sum] = 360 - x % 360;
            sum++;
        }
        else if (s == "forward")
        {
            cin >> x;
            f += x;
        }
        else
        {
            cin >> x;
            b += x;
        }
    }
    sum--;
    dp[0][0] = 1;
    for (int i = 1; i <= sum; i++)
    {
        for (int j = 0; j <= 360; j++)
        {
            if (j >= a[i])
            {
                dp[i][j] = dp[i - 1][j] || dp[i - 1][j - a[i]];
                // cout << dp[i-1][j] <<" "<< dp[i - 1][j -a[i]] << " ";
            }
            else
            {
                dp[i][j] = dp[i - 1][j];
                // cout << dp[i-1][j] << " ";
            }
            // cout << i << " " << j << " " << a[i]<< " "<< dp[i][j] << " "<< endl;
        }
        // cout << endl;
    }
    for (int i = 360; i >= 1; i--)
    {
        if (dp[sum][i] != 0 && minn > abs(180 - i))
        {
            c = 180 * (i / 180 + 1) - i;
        }
    }
    // cout <<c<<endl;
    if (c == 180)
    {
        ans = f + b;
    }
    else
    {
        ans = sqrt(f * f + b * b + 2 * b * f * cos(c * p / 180.0));
    }
    cout << fixed << setprecision(6) << ans;
    return 0;
}

Answer 1

没错啊，只是你这样做就做复杂了，是不是提交的时候超时啥的