0_0_20612418_2885.cpp:5:5: error: 'deq' does not name a type
deq;void dfs(int y,int x){ if(res==0){ found=1; return; } if(found)return; int flag=0,i; for(i=y-2;i>=0;i--) if(mp[i][x]){ flag=1; break; } if(y>0&&mp[y-1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==0){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('U'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('U'); mp[i-1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; mp[i-1][x]-=d-1; deq.pop_back(); res++; } } flag=0; for(i=y+2;i<n;i++) if(mp[i][x]){ flag=1; break; } if(y<n-1&&mp[y+1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==n-1){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('D'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('D'); mp[i+1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); mp[i+1][x]-=d-1; res++; } } flag=0; for(i=x-2;i>=0;i--) if(mp[y][i]){ flag=1; break; } if(x>0&&mp[y][x-1])flag=0; if(flag){ int d=mp[y][i]; if(i==0){ mp[y][i]=0; deq.push_back('L'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('L'); res--; mp[y][i-1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i-1]-=d-1; } } flag=0; for(i=x+2;i<m;i++) if(mp[y][i]){ flag=1; break; } if(x<m-1&&mp[y][x+1])flag=0; if(flag){ int d=mp[y][i]; if(i==m-1){ mp[y][i]=0; deq.push_back('R'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('R'); res--; mp[y][i+1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i+1]-=d-1; } }}int main(void){ while(~scanf("%d%d",&m,&n)){ res=0; char c; for(int i=0;i<n;i++){ getchar(); for(int j=0;j<m;j++){ c=getchar(); if(c!='.'){ mp[i][j]=(c-'a')+1; res+=(c-'a')+1; } else mp[i][j]=0; } } found=0; for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ if(mp[i][j]!=0)continue; dfs(i,j); if(found){ printf("%d\n%d\n",i,j); while(!deq.empty()){ putchar(deq.front()); deq.pop_front(); } puts(""); break; } } if(found)break; } } return 0;}
^
0_0_20612418_2885.cpp: In function 'void dfs(int, int)':
0_0_20612418_2885.cpp:5:38: error: 'res' was not declared in this scope
deq;void dfs(int y,int x){ if(res==0){ found=1; return; } if(found)return; int flag=0,i; for(i=y-2;i>=0;i--) if(mp[i][x]){ flag=1; break; } if(y>0&&mp[y-1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==0){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('U'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('U'); mp[i-1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; mp[i-1][x]-=d-1; deq.pop_back(); res++; } } flag=0; for(i=y+2;i<n;i++) if(mp[i][x]){ flag=1; break; } if(y<n-1&&mp[y+1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==n-1){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('D'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('D'); mp[i+1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); mp[i+1][x]-=d-1; res++; } } flag=0; for(i=x-2;i>=0;i--) if(mp[y][i]){ flag=1; break; } if(x>0&&mp[y][x-1])flag=0; if(flag){ int d=mp[y][i]; if(i==0){ mp[y][i]=0; deq.push_back('L'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('L'); res--; mp[y][i-1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i-1]-=d-1; } } flag=0; for(i=x+2;i<m;i++) if(mp[y][i]){ flag=1; break; } if(x<m-1&&mp[y][x+1])flag=0; if(flag){ int d=mp[y][i]; if(i==m-1){ mp[y][i]=0; deq.push_back('R'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('R'); res--; mp[y][i+1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i+1]-=d-1; } }}int main(void){ while(~scanf("%d%d",&m,&n)){ res=0; char c; for(int i=0;i<n;i++){ getchar(); for(int j=0;j<m;j++){ c=getchar(); if(c!='.'){ mp[i][j]=(c-'a')+1; res+=(c-'a')+1; } else mp[i][j]=0; } } found=0; for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ if(mp[i][j]!=0)continue; dfs(i,j); if(found){ printf("%d\n%d\n",i,j); while(!deq.empty()){ putchar(deq.front()); deq.pop_front(); } puts(""); break; } } if(found)break; } } return 0;}
^
0_0_20612418_2885.cpp:5:54: error: 'found' was not declared in this scope
deq;void dfs(int y,int x){ if(res==0){ found=1; return; } if(found)return; int flag=0,i; for(i=y-2;i>=0;i--) if(mp[i][x]){ flag=1; break; } if(y>0&&mp[y-1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==0){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('U'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('U'); mp[i-1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; mp[i-1][x]-=d-1; deq.pop_back(); res++; } } flag=0; for(i=y+2;i<n;i++) if(mp[i][x]){ flag=1; break; } if(y<n-1&&mp[y+1][x])flag=0; if(flag){ int d=mp[i][x]; if(i==n-1){ res-=mp[i][x]; mp[i][x]=0; deq.push_back('D'); dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); res+=mp[i][x]; } else { res--; mp[i][x]=0; deq.push_back('D'); mp[i+1][x]+=d-1; dfs(i,x);if(found)return; mp[i][x]=d; deq.pop_back(); mp[i+1][x]-=d-1; res++; } } flag=0; for(i=x-2;i>=0;i--) if(mp[y][i]){ flag=1; break; } if(x>0&&mp[y][x-1])flag=0; if(flag){ int d=mp[y][i]; if(i==0){ mp[y][i]=0; deq.push_back('L'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('L'); res--; mp[y][i-1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i-1]-=d-1; } } flag=0; for(i=x+2;i<m;i++) if(mp[y][i]){ flag=1; break; } if(x<m-1&&mp[y][x+1])flag=0; if(flag){ int d=mp[y][i]; if(i==m-1){ mp[y][i]=0; deq.push_back('R'); res-=d; dfs(y,i);if(found)return; deq.pop_back(); res+=d; mp[y][i]=d; } else { mp[y][i]=0; deq.push_back('R'); res--; mp[y][i+1]+=d-1; dfs(y,i);if(found)return; deq.pop_back(); res++; mp[y][i]=d; mp[y][i+1]-=d-1; } }}int main(void){ while(~scanf("%d%d",&m,&n)){ res=0; char c; for(int i=0;i<n;i++){ getchar(); for(int
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