View Compilation Error

0_0_37646971_16191.cpp: In function 'void sol()':
0_0_37646971_16191.cpp:95:4: error: 'tem' was not declared in this scope
    tem = ON + 1 ;
    ^
0_0_37646971_16191.cpp:102:21: error: 'tem' was not declared in this scope
    ans -= CS(K,t) * tem;
                     ^
0_0_37646971_16191.cpp:105:21: error: 'tem' was not declared in this scope
    ans += CS(K,t) * tem;
                     ^