0_0_35896264_4061.cpp: In function 'int main()': 0_0_35896264_4061.cpp:41:16: error: 'b' was not declared in this scope nv+=na;b ^ 0_0_35896264_4061.cpp:42:23: error: 'i' was not declared in this scope for(int i = 1;i <= nv ;i++) ^