Vector subscript out of range

Question

I read a file into a 2 dimensional vector named matrix  and I want  to check the frequency of the item inside the matrix, but when debugging it gives me the error message: vector subscript out of range. Can someone help? 
#include <assert.h>
#include <string>
#include <map>
#include <sstream>
#include <vector>
#include <fstream>
#include <iostream>
#include "main_loadDB.h"
using namespace std; 
typedef map<string, int> attri_value;
void buildFirstItemset(matrix_file m){
matrix_file temp=m;
int lmc=temp[0].size();
int lmr=temp.size();
int msize=lmc*lmr;
attri_value attri_map;
for (int i=0;i<lmr;i++){
cout<<"i:"<<i<<" ";
for(int j=0;j<lmc;j++){
string tm=temp[i][j];
++attri_map[tm];
// here is the error
cout<<endl;
#endif
Any help appreciated!

Answer 1

Hi DBM_Q,
Since this issue is related to the VC++, to help you resolve this issue as soon as possible, I suggest you post this issue to the VC++ Forum for dedicated support:
http://social.msdn.microsoft.com/Forums/en-US/home?forum=vcgeneral
Thanks for your understanding.
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