View Compilation Error

0_0_21793276_8256.cpp:60:4: error: redefinition of 'll maxn'
 ll maxn=1000000007;
    ^
0_0_21793276_8256.cpp:10:4: note: 'll maxn' previously defined here
 ll maxn=1000000007;
    ^
0_0_21793276_8256.cpp: In function 'int main()':
0_0_21793276_8256.cpp:61:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_21793276_8256.cpp:11:5: note: 'int main()' previously defined here
 int main()
     ^