Submission #836032

#	Time	Username	Problem	Language	Result	Execution time	Memory
836032		veehj	Sightseeing in Kyoto (JOI22_kyoto)	C++17	10 / 100	455 ms	1048576 KiB

kyoto

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

typedef long long ll;
typedef long double ld;
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(x) (x).begin(), (x).end()
vector<vector<ll>> v;
ll h, w; vector<ll> x, y;

ll f(ll a, ll b){
  if(a<0 || a>=h || b<0 || b>=w) return -1;
  return v[a][b];
}

int main() {
  cin >> h >> w;
  x.resize(h); y.resize(w);
  for(auto& u : x) cin >> u; 
  for(auto& u : y) cin >> u;
  v.assign(h+1, vector<ll>(w+1, -1));
  v[0][0]=0;
  for(ll i=0; i<h; i++){
    for(ll j=0; j<w; j++){
      if(i==0 && j==0) continue;
      ll a=f(i-1, j), b=f(i, j-1);
      if(a==-1) v[i][j]=b+x[i];
      else if(b==-1) v[i][j]=a+y[j];
      else v[i][j]=min(a+y[j], b+x[i]);
    }
  }
  cout << v[h-1][w-1] << endl;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 30
• Subtask 3: 0 / 60