View Compilation Error

0_0_20314191_3477.cpp:2:13: error: 'bais' was not declared in this scope
    int mod=(bais-2*i)%3;
             ^
0_0_20314191_3477.cpp:2:20: error: 'i' was not declared in this scope
    int mod=(bais-2*i)%3;
                    ^
0_0_20314191_3477.cpp:3:4: error: 'f' does not name a type
    f=0;
    ^
0_0_20314191_3477.cpp:4:4: error: expected unqualified-id before 'for'
    for(int x=0;x<=s1;x++) {
    ^
0_0_20314191_3477.cpp:4:16: error: 'x' does not name a type
    for(int x=0;x<=s1;x++) {
                ^
0_0_20314191_3477.cpp:4:22: error: 'x' does not name a type
    for(int x=0;x<=s1;x++) {
                      ^
0_0_20314191_3477.cpp:19:4: error: expected unqualified-id before 'if'
    if(f){
    ^
0_0_20314191_3477.cpp:22:3: error: expected declaration before '}' token
   }
   ^