View Compilation Error

0_0_17203100_25951.cpp:66:13: error: redefinition of 'int inv [10007]'
 int inv[maxn];
             ^
0_0_17203100_25951.cpp:9:5: note: 'int inv [10007]' previously declared here
 int inv[maxn];
     ^
0_0_17203100_25951.cpp: In function 'int pow(int, int)':
0_0_17203100_25951.cpp:68:5: error: redefinition of 'int pow(int, int)'
 int pow(int a,int n){
     ^
0_0_17203100_25951.cpp:11:5: note: 'int pow(int, int)' previously defined here
 int pow(int a,int n){
     ^
0_0_17203100_25951.cpp: In function 'void init()':
0_0_17203100_25951.cpp:78:6: error: redefinition of 'void init()'
 void init(){
      ^
0_0_17203100_25951.cpp:21:6: note: 'void init()' previously defined here
 void init(){
      ^
0_0_17203100_25951.cpp: In function 'int main()':
0_0_17203100_25951.cpp:91:5: error: redefinition of 'int main()'
 int main(){
     ^
0_0_17203100_25951.cpp:28:5: note: 'int main()' previously defined here
 int main(){
     ^