积极答复者
debug assertion failed

问题
-
Expression:Vector subscript out of range.
//Program code:
#include<iostream>
#include<vector>
using namespace std;int main()
{
char alp;
vector<int> num(26,0);
while(cin.get(alp))
{
switch(alp)
{
case 'A': //counting characters
case 'a':num[0]++; break;
case 'B':
case 'b':num[1]++; break;
case 'C':
case 'c':num[2]++; break;
case 'D':
case 'd':num[3]++; break;
case 'E':
case 'e':num[4]++; break;
case 'F':
case 'f':num[5]++; break;
case 'G':
case 'g':num[6]++; break;
case 'H':
case 'h':num[7]++; break;
case 'I':
case 'i':num[8]++; break;
case 'J':
case 'j':num[9]++; break;
case 'K':
case 'k':num[10]++; break;
case 'L':
case 'l':num[11]++; break;
case 'M':
case 'm':num[12]++; break;
case 'N':
case 'n':num[13]++; break;
case 'O':
case 'o':num[14]++; break;
case 'P':
case 'p':num[15]++; break;
case 'Q':
case 'q':num[16]++; break;
case 'R':
case 'r':num[17]++; break;
case 'S':
case 's':num[18]++; break;
case 'T':
case 't':num[19]++; break;
case 'U':
case 'u':num[20]++; break;
case 'V':
case 'v':num[21]++; break;
case 'W':
case 'w':num[22]++; break;
case 'X':
case 'x':num[23]++; break;
case 'Y':
case 'y':num[24]++; break;
case 'Z':
case 'z':num[25]++; break;
case ' ':num[26]++; break;//couting space characters
case '\t':num[27]++; break;//counting tab characters
case '\n':num[28]++; break;//counting newline characters
default:cout<<"error!"<<endl;
break;//insuring switch being broken
}
}
for(vector<int>::size_type i=0;i!=29;i++)//outputing statistics results
cout<<num[i]<<endl;
return 0;
}//what's the matter? And how to solve the problem?
//using vs2005