View Compilation Error

0_0_3110421_8891.cpp: In function `int main()':
0_0_3110421_8891.cpp:34: error: `i' undeclared (first use this function)
0_0_3110421_8891.cpp:34: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3110421_8891.cpp:36: error: `j' undeclared (first use this function)
0_0_3110421_8891.cpp: At global scope:
0_0_3110421_8891.cpp:43: error: expected unqualified-id before "return"
0_0_3110421_8891.cpp:43: error: expected `,' or `;' before "return"
0_0_3110421_8891.cpp:44: error: expected declaration before '}' token