0_0_37482345_29998.cpp: In function 'int main()':
0_0_37482345_29998.cpp:13:21: error: 'str' was not declared in this scope
a[i][strlen(str)]= ' ';
^
0_0_37482345_29998.cpp:15:26: error: 'len' was not declared in this scope
for(k = 0 ; k <= len ; k++)
^
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