https://atcoder.jp/contests/dp/tasks/dp_f
''' void solve(){ string s; string t; cin>>s; cin>>t; int n=s.length(); int m=t.length(); vector<vector>dp(n,vector(m)); int index1=-1; for(int i=0;i<m;i++){ if(s[0]==t[i]){ index1=i; break; } } if(index1!=-1){ for(int i=index1;i<m;i++){ dp[0][i]=1; } } int index2=-1;
for(int i=0;i<n;i++){ if(t[0]==s[i]){ index2=i; break; } } if(index2!=-1){ for(int i=index2;i<n;i++){ dp[i][0]=1; } } for(int i=1;i<n;i++){ for(int j=1;j<m;j++){ dp[i][j]=max(dp[i-1][j],dp[i][j-1]); if(s[i]==t[j]){ dp[i][j]=max(dp[i][j],1+dp[i-1][j-1]); } } }
string ans="";
int x=n-1; int y=m-1; while(x>=0 && y>=0){ if(s[x]==t[y]){ ans+=s[x]; x--; y--; }else{ if(x>0 && y>0 && dp[x-1][y]>=dp[x][y-1]){ x--; }else{ y--; } } } if(s[0]==t[0]){ ans+=s[0]; } reverse(ans.begin(),ans.end()); cout<<ans<<'\n';
}
int main(){ int t=1;
while(t--){ solve(); }
}
'''
In my above code,I am getting some wa.Can anybody help me with problem where am i getting wa.