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October 30, 2016 07:20
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#include <bits/stdc++.h> | |
using namespace std; | |
#define int long long // <-----!!!!!!!!!!!!!!!!!!! | |
#define rep(i,n) for (int i=0;i<(n);i++) | |
#define rep2(i,a,b) for (int i=(a);i<(b);i++) | |
#define rrep(i,n) for (int i=(n)-1;i>=0;i--) | |
#define rrep2(i,a,b) for (int i=(a)-1;i>=b;i--) | |
#define all(a) (a).begin(),(a).end() | |
#define rall(a) (a).rbegin(),(a).rend() | |
#define printV(_v) for(auto _x:_v){cout<<_x<<" ";}cout<<endl | |
#define printVS(vs) for(auto x : vs){cout << x << endl;} | |
#define printVV(_vv) for(auto _v:_vv){for(auto _x:_v){cout<<_x<<" ";}cout<<endl;} | |
#define printP(p) cout << p.first << " " << p.second << endl | |
#define printVP(vp) for(auto p : vp) printP(p); | |
#define readV(_v) rep(j, _v.size()) cin >> _v[j]; | |
#define readVV(_vv) rep(i, _vv.size()) readV(_vv[i]); | |
#define output(_x) cout << _x << endl; | |
typedef long long ll; | |
typedef pair<int, int> Pii; | |
typedef tuple<int, int, int> TUPLE; | |
typedef vector<int> vi; | |
typedef vector<vi> vvi; | |
typedef vector<vvi> vvvi; | |
typedef vector<Pii> vp; | |
const int inf = 1e9; | |
const int mod = 1e9 + 7; | |
const int MAX = 52; | |
int n, m; | |
int a[MAX]; | |
int b[MAX]; | |
int dp[MAX][MAX][MAX][MAX][2][3]; | |
int dfs(int l0, int r0, int l1, int r1, int turn, int pass, int p0, int p1) { | |
int& ret = dp[l0][r0][l1][r1][turn][pass]; | |
if (ret != inf && ret != -inf) return ret; | |
if (!turn) { | |
// stackに積む場合 | |
if (r0 < n) { | |
if (a[r0] > 0) { | |
// 得点カードを積む場合 | |
ret = max(ret, dfs(l0, r0 + 1, l1, r1, turn^1, 0, p0 + a[r0], p1)); | |
} else { | |
// 妨害カードを積む場合 | |
ret = max(ret, dfs(l0, r0 + 1, l1, r1, turn^1, 0, p0, 0)); | |
} | |
} | |
// パスする場合 | |
if (l0 == r0 && l1 == r1) { | |
// stackが空のとき | |
if (pass == 0) { | |
assert(p0 == 0 && p1 == 0); | |
ret = max(ret, dfs(r0, r0, r1, r1, turn^1, 1, 0, 0)); | |
} else if (pass == 1) { | |
ret = max(ret, 0ll); | |
} | |
} else { | |
// stackが空でないとき | |
assert(pass == 0); | |
ret = max(ret, dfs(r0, r0, r1, r1, turn^1, 0, 0, 0) + p0 - p1); | |
} | |
} else { | |
// stackに積む場合 | |
if (r1 < m) { | |
if (b[r1] > 0) { | |
// 得点カードを積む場合 | |
ret = min(ret, dfs(l0, r0, l1, r1 + 1, turn^1, 0, p0, p1 + b[r1])); | |
} else { | |
// 妨害カードを積む場合 | |
ret = min(ret, dfs(l0, r0, l1, r1 + 1, turn^1, 0, 0, p1)); | |
} | |
} | |
// パスする場合 | |
if (l0 == r0 && l1 == r1) { | |
// stackが空のとき | |
if (pass == 0) { | |
assert(p0 == 0 && p1 == 0); | |
ret = min(ret, dfs(r0, r0, r1, r1, turn^1, 1, 0, 0)); | |
} else if (pass == 1) { | |
ret = min(ret, 0ll); | |
} | |
} else { | |
// stackが空でないとき | |
assert(pass == 0); | |
ret = min(ret, dfs(r0, r0, r1, r1, turn^1, 0, 0, 0) + p0 - p1); | |
} | |
} | |
return ret; | |
} | |
signed main() { | |
std::ios::sync_with_stdio(false); | |
std::cin.tie(0); | |
cin >> n >> m; | |
rep(i, n) cin >> a[i]; | |
rep(i, m) cin >> b[i]; | |
rep(i, MAX) rep(j, MAX) rep(k, MAX) rep(l, MAX) rep(p, 2) rep(q, 3) { | |
dp[i][j][k][l][p][q] = (!p ? -inf : inf); | |
} | |
cout << dfs(0, 0, 0, 0, 0, 0, 0, 0) << endl; | |
} |
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