View Compilation Error

0_0_36247352_12237.cpp: In function 'int main()':
0_0_36247352_12237.cpp:19:7: error: incompatible types in assignment of 'll {aka long long int}' to 'll [100520] {aka long long int [100520]}'
     a = mod1[mod[i]] + 1;
       ^
0_0_36247352_12237.cpp:20:5: error: 'b' was not declared in this scope
     b = i;
     ^
0_0_36247352_12237.cpp:24:13: error: invalid conversion from 'll* {aka long long int*}' to 'int' [-fpermissive]
   for(int i=a;i<=b;i++) printf("%d%c", i, (i == b) ? '\n' : ' ');
             ^
0_0_36247352_12237.cpp:24:18: error: 'b' was not declared in this scope
   for(int i=a;i<=b;i++) printf("%d%c", i, (i == b) ? '\n' : ' ');
                  ^