Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<string> vs;
typedef pair<int,int> pii;
typedef long long ll;
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(),(a).rend()
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)

int main(){
  int init_hp,max_hp;
  while(cin>>init_hp>>max_hp,init_hp|max_hp){
    int r,c;
    cin>>r>>c;
    vs a(r);
    REP(i,r){
      cin>>a[i];
    }

    int t;
    cin>>t;
    map<char,int> d;
    REP(i,t){
      char c;
      int dd;
      cin>>c>>dd;
      d[c]=dd;
    }
    int s;
    cin>>s;
    int cy=0,cx=0;
    vi damages(1);
    int cy=0,cx=0;                                                                                                                                                                                                                                                                                                  [0/1815]
    vi damages(1);
    REP(i,s){
      char dd;
      int n;
      cin>>dd>>n;
      int dy=0,dx=0;
      switch(dd){
        case 'U':
          dy=-1;break;
        case 'D':
          dy=1;break;
        case 'L':
          dx=-1;break;
        case 'R':
          dx=1;break;
      }
      REP(j,n){
        cy+=dy;
        cx+=dx;
        damages.push_back(d[a[cy][cx]]);
      }
    }

    int P;
    cin>>P;
    vi p(P);
    REP(i,P){
      cin>>p[i];
    }

    int n=damages.size();
    vvi dp(n+1,vi(1<<P));
    dp[0][0]=init_hp;
    REP(i,n){
      REP(j,1<<P){
        if(dp[i][j]>0){
          if(dp[i][j]<=damages[i]){
            REP(k,1<<P){
              bool ok=true;
              int cured=0;
              REP(l,P){
                if((k>>l)&1){
                  cured+=p[l];
                }
                if((j>>l)&(k>>l)&1){
                  ok=false;
                }
              }
              if(ok){
                dp[i+1][j|k]=max(dp[i+1][j|k],min(max_hp,dp[i][j]+cured-damages[i]));
              }
            }
          }else{
            dp[i+1][j]=max(dp[i+1][j],dp[i][j]-damages[i]);
          }
        }
      }
    }
    /*
    REP(i,n+1){
      REP(j,1<<P){
        cerr<<i<<" "<<j<<" "<<dp[i][j]<<endl;
      }
    }
    */
    bool ok=false;
    REP(j,1<<P){
      if(dp[n][j]>0){
        ok=true;
      }
    }
    cout<<(ok?"YES":"NO")<<endl;
  }

}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:9: error: redeclaration of 'int cy'
   37 |     int cy=0,cx=0;                                                                                                                                                                                                                                                                                                  [0/1815]
      |         ^~
a.cc:35:9: note: 'int cy' previously declared here
   35 |     int cy=0,cx=0;
      |         ^~
a.cc:37:14: error: redeclaration of 'int cx'
   37 |     int cy=0,cx=0;                                                                                                                                                                                                                                                                                                  [0/1815]
      |              ^~
a.cc:35:14: note: 'int cx' previously declared here
   35 |     int cy=0,cx=0;
      |              ^~
a.cc:37:310: error: expected identifier before numeric constant
   37 |     int cy=0,cx=0;                                                                                                                                                                                                                                                                                                  [0/1815]
      |                                                                                                                                                                                                                                                                                                                      ^
a.cc: In lambda function:
a.cc:38:5: error: expected '{' before 'vi'
   38 |     vi damages(1);
      |     ^~
a.cc: In function 'int main()':
a.cc:37:317: error: expected ';' before 'vi'
   37 |     int cy=0,cx=0;                                                                                                                                                                                                                                                                                                  [0/1815]
      |                                                                                                                                                                                                                                                                                                                             ^
      |                                                                                                                                                                                                                                                                                                                             ;
   38 |     vi damages(1);
      |     ~~