View Compilation Error

0_0_36605592_19472.cpp: In function 'int main()':
0_0_36605592_19472.cpp:41:24: error: 's2' was not declared in this scope
                 if(abs(s2-s1)%abs(a[id+1]-a[id])!=0)
                        ^
0_0_36605592_19472.cpp:41:27: error: 's1' was not declared in this scope
                 if(abs(s2-s1)%abs(a[id+1]-a[id])!=0)
                           ^
0_0_36605592_19472.cpp:43:24: error: 's2' was not declared in this scope
                 int k=(s2-s1)/(a[id+1]-a[id]);
                        ^
0_0_36605592_19472.cpp:43:27: error: 's1' was not declared in this scope
                 int k=(s2-s1)/(a[id+1]-a[id]);
                           ^
0_0_36605592_19472.cpp:53:28: error: 'm' was not declared in this scope
             for(int i=1;i<=m;i++)
                            ^