乘法表问题

#include <iostream>
using namespace std;

int main(){
int n;
char str[] = "bbbba";
n = strlen(str);
int ***m = new int**
;//创建三维数组
for (int i = 0; i < n; i++){
m[i] = new int*
;
for (int j = 0; j < n; j++){
m[i][j] = new int[3]();
}
}
//矩阵初始化
for (int i = 0; i < n; i++){
if (str[i] == 'a'){
m[i][i][0] = 1;
}
else if (str[i] == 'b'){
m[i][i][1] = 1;
}
else if (str[i] == 'c'){
m[i][i][2] = 1;
}
}
//矩阵处理
for (int r = 1; r < n; r++){
for (int i = 0; i < n - r ; i++){
int j = i + r ;
for (int k = i; k < j; k++){
m[i][j][0] += m[i][k][0] * m[k + 1][j][2] +
m[i][k][1] * m[k + 1][j][2] +
m[i][k][2] * m[k + 1][j][0];
}
for (int k = i; k < j; k++){
m[i][j][1] += m[i][k][0] * m[k + 1][j][0] +
m[i][k][0] * m[k + 1][j][1] +
m[i][k][1] * m[k + 1][j][1];
}
for (int k = i; k < j; k++){
m[i][j][2] += m[i][k][1] * m[k + 1][j][0] +
m[i][k][2] * m[k + 1][j][1] +
m[i][k][2] * m[k + 1][j][2];
}

}
}
//输出矩阵
for (int i = 0; i < n; i++){
for (int j = 0; j < n; j++){
for (int k = 0; k < 3; k++){
cout<<m[i][j][k]<<" ";
}
cout << "  ";
}
cout << endl;
}

cout << endl;
cout <<"加括号的方式有："<< m[0][n-1][0]<<"种"<<endl;
return 0;
}