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View Compilation Error

0_0_37757159_31097.cpp:152:11: error: redefinition of 'const int mod'
 const int mod = 998244353;
           ^
0_0_37757159_31097.cpp:4:11: note: 'const int mod' previously defined here
 const int mod = 998244353;
           ^
0_0_37757159_31097.cpp: In function 'int add(int, int)':
0_0_37757159_31097.cpp:154:5: error: redefinition of 'int add(int, int)'
 int add(int a, int b) {
     ^
0_0_37757159_31097.cpp:6:5: note: 'int add(int, int)' previously defined here
 int add(int a, int b) {
     ^
0_0_37757159_31097.cpp: In function 'void _add(int&, int)':
0_0_37757159_31097.cpp:157:6: error: redefinition of 'void _add(int&, int)'
 void _add(int & a, int b) {
      ^
0_0_37757159_31097.cpp:9:6: note: 'void _add(int&, int)' previously defined here
 void _add(int & a, int b) {
      ^
0_0_37757159_31097.cpp: In function 'int sub(int, int)':
0_0_37757159_31097.cpp:160:5: error: redefinition of 'int sub(int, int)'
 int sub(int a, int b) {
     ^
0_0_37757159_31097.cpp:12:5: note: 'int sub(int, int)' previously defined here
 int sub(int a, int b) {
     ^
0_0_37757159_31097.cpp: In function 'int mul(int, int)':
0_0_37757159_31097.cpp:163:5: error: redefinition of 'int mul(int, int)'
 int mul(int a, int b) {
     ^
0_0_37757159_31097.cpp:15:5: note: 'int mul(int, int)' previously defined here
 int mul(int a, int b) {
     ^
0_0_37757159_31097.cpp: In function 'int power(int, int)':
0_0_37757159_31097.cpp:167:5: error: redefinition of 'int power(int, int)'
 int power(int a, int b){
     ^
0_0_37757159_31097.cpp:19:5: note: 'int power(int, int)' previously defined here
 int power(int a, int b){
     ^
0_0_37757159_31097.cpp: At global scope:
0_0_37757159_31097.cpp:176:16: error: redefinition of 'int INV [1000005]'
 int INV[1000005];
                ^
0_0_37757159_31097.cpp:28:5: note: 'int INV [1000005]' previously declared here
 int INV[1000005];
     ^
0_0_37757159_31097.cpp: In function 'int inv(int)':
0_0_37757159_31097.cpp:177:5: error: redefinition of 'int inv(int)'
 int inv(int x) {
     ^
0_0_37757159_31097.cpp:29:5: note: 'int inv(int)' previously defined here
 int inv(int x) {
     ^
0_0_37757159_31097.cpp: In function 'int Div(int, int)':
0_0_37757159_31097.cpp:182:5: error: redefinition of 'int Div(int, int)'
 int Div(int a, int b) {
     ^
0_0_37757159_31097.cpp:34:5: note: 'int Div(int, int)' previously defined here
 int Div(int a, int b) {
     ^
0_0_37757159_31097.cpp: In function 'void solve()':
0_0_37757159_31097.cpp:186:6: error: redefinition of 'void solve()'
 void solve()
      ^
0_0_37757159_31097.cpp:38:6: note: 'void solve()' previously defined here
 void solve()
      ^
0_0_37757159_31097.cpp: In function 'int main()':
0_0_37757159_31097.cpp:284:8: error: redefinition of 'int main()'
 signed main()
        ^
0_0_37757159_31097.cpp:136:8: note: 'int main()' previously defined here
 signed main()
        ^


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