View Compilation Error

0_0_13496746_8967.cpp: In function 'void serch(int, int)':
0_0_13496746_8967.cpp:24:37: error: 'i' was not declared in this scope
                 casee = casee + num[i][j];
                                     ^
0_0_13496746_8967.cpp:24:40: error: 'j' was not declared in this scope
                 casee = casee + num[i][j];
                                        ^