0_0_30104263_13410.cpp: In function 'int main()': 0_0_30104263_13410.cpp:27:30: error: 'a' was not declared in this scope scanf(" %c",&a[i][j]); ^ 0_0_30104263_13410.cpp:33:32: error: 'z' was not declared in this scope printf("Case %d: %d\n",z,o); ^