Segmentation fault in wildcard pattern matching

I am getting Segmentation fault in wildcard pattern matching in interviewBit and i seeked Help only to get no response by now. I am using DP to solve the task. Please help me figure out the reason of The segFault Link to the problem -- https://www.interviewbit.com/problems/regular-expression-match/

Here is my solution getting segFault in C++ .

int Solution::isMatch(const string &s, const string &p) {

    int n=s.size(),m=p.size();
    bool dp[n+1][m+1];

   for(int i=0;i<=n;i++)for(int j=0;j<=m;j++)dp[i][j]=false;
   dp[0][0]=true;

   for(int j=1;j<=m;j++)
      if(p[j-1]=='*')dp[0][j]=dp[0][j-1];

   for(int i=1;i<=n;i++)
   {
      for(int j=1;j<=m;j++)
      {
         if(s[i-1]==p[j-1] || p[j-1]=='?')dp[i][j]=dp[i-1][j-1];
         else if(p[j-1]=='*')
         {
            int v1=dp[i][j-1],v2=0;// Not Using
            v2=(dp[i-1][j]|dp[i][j-1]);
            dp[i][j]=(v1|v2);
         }
         else dp[i][j]=false;
      }
   } 
   return dp[n][m];
}