Language: C++

#include <iostream>
using namespace std;
int main(void){
    
　　long long  N;
　　cin>>N;
　　int mod = 1000000007;
　　long long A[N];
　　for(int i=0;i<N;i++){
　　　    cin>>A[i];
　　}
    long long int ansd=0;
　　for(int l=0;l<N;l++){
　　　    for (int k=0;k<N;k++){
　　　        if(l<k){
　　　        ansd+=A[l]*A[k];
　　　   }
　　　        
　　　    }
　　}
　　while(ansd>mod){
　　    ansd=ansd-mod;
　　}
　　
　　cout<<ansd<<endl;
　　return 0;
}


Compiler output:
a.cc:5:1: error: extended character 　 is not valid in an identifier
    5 | 　　long long  N;
      | ^
a.cc:5:1: error: extended character 　 is not valid in an identifier
a.cc:6:1: error: extended character 　 is not valid in an identifier
    6 | 　　cin>>N;
      | ^
a.cc:6:1: error: extended character 　 is not valid in an identifier
a.cc:7:1: error: extended character 　 is not valid in an identifier
    7 | 　　int mod = 1000000007;
      | ^
a.cc:7:1: error: extended character 　 is not valid in an identifier
a.cc:8:1: error: extended character 　 is not valid in an identifier
    8 | 　　long long A[N];
      | ^
a.cc:8:1: error: extended character 　 is not valid in an identifier
a.cc:9:1: error: extended character 　 is not valid in an identifier
    9 | 　　for(int i=0;i<N;i++){
      | ^
a.cc:9:1: error: extended character 　 is not valid in an identifier
a.cc:10:1: error: extended character 　 is not valid in an identifier
   10 | 　　　    cin>>A[i];
      | ^
a.cc:10:1: error: extended character 　 is not valid in an identifier
a.cc:10:1: error: extended character 　 is not valid in an identifier
a.cc:11:1: error: extended character 　 is not valid in an identifier
   11 | 　　}
      | ^
a.cc:11:1: error: extended character 　 is not valid in an identifier
a.cc:13:1: error: extended character 　 is not valid in an identifier
   13 | 　　for(int l=0;l<N;l++){
      | ^
a.cc:13:1: error: extended character 　 is not valid in an identifier
a.cc:14:1: error: extended character 　 is not valid in an identifier
   14 | 　　　    for (int k=0;k<N;k++){
      | ^
a.cc:14:1: error: extended character 　 is not valid in an identifier
a.cc:14:1: error: extended character 　 is not valid in an identifier
a.cc:15:1: error: extended character 　 is not valid in an identifier
   15 | 　　　        if(l<k){
      | ^
a.cc:15:1: error: extended character 　 is not valid in an identifier
a.cc:15:1: error: extended character 　 is not valid in an identifier
a.cc:16:1: error: extended character 　 is not valid in an identifier
   16 | 　　　        ansd+=A[l]*A[k];
      | ^
a.cc:16:1: error: extended character 　 is not valid in an identifier
a.cc:16:1: error: extended character 　 is not valid in an identifier
a.cc:17:1: error: extended character 　 is not valid in an identifier
   17 | 　　　   }
      | ^
a.cc:17:1: error: extended character 　 is not valid in an identifier
a.cc:17:1: error: extended character 　 is not valid in an identifier
a.cc:18:1: error: extended character 　 is not valid in an identifier
   18 | 　　　
      | ^
a.cc:18:1: error: extended character 　 is not valid in an identifier
a.cc:18:1: error: extended character 　 is not valid in an identifier
a.cc:19:1: error: extended character 　 is not valid in an identifier
   19 | 　　　    }
      | ^
a.cc:19:1: error: extended character 　 is not valid in an identifier
a.cc:19:1: error: extended character 　 is not valid in an identifier
a.cc:20:1: error: extended character 　 is not valid in an identifier
   20 | 　　}
      | ^
a.cc:20:1: error: extended character 　 is not valid in an identifier
a.cc:21:1: error: extended character 　 is not valid in an identifier
   21 | 　　while(ansd>mod){
      | ^
a.cc:21:1: error: extended character 　 is not valid in an identifier
a.cc:22:1: error: extended character 　 is not valid in an identifier
   22 | 　　    ansd=ansd-mod;
      | ^
a.cc:22:1: error: extended character 　 is not valid in an identifier
a.cc:23:1: error: extended character 　 is not valid in an identifier
   23 | 　　}
      | ^
a.cc:23:1: error: extended character 　 is not valid in an identifier
a.cc:24:1: error: extended character 　 is not valid in an identifier
   24 | 　　
      | ^
a.cc:24:1: error: extended character 　 is not valid in an identifier
a.cc:25:1: error: extended character 　 is not valid in an identifier
   25 | 　　cout<<ansd<<endl;
      | ^
a.cc:25:1: error: extended character 　 is not valid in an identifier
a.cc:26:1: error: extended character 　 is not valid in an identifier
   26 | 　　return 0;
      | ^
a.cc:26:1: error: extended character 　 is not valid in an identifier
a.cc: In function 'int main()':
a.cc:5:1: error: '\U00003000\U00003000long' was not declared in this scope
    5 | 　　long long  N;
      | ^~~~~~~~
a.cc:6:1: error: '\U00003000\U00003000cin' was not declared in this scope
    6 | 　　cin>>N;
      | ^~~~~~~
a.cc:6:10: error: 'N' was not declared in this scope
    6 | 　　cin>>N;
      |          ^
a.cc:7:1: error: '\U00003000\U00003000int' was not declared in this scope
    7 | 　　int mod = 1000000007;
      | ^~~~~~~
a.cc:8:9: error: expected ';' before 'long'
    8 | 　　long long A[N];
      |         ^~~~~
      |         ;
a.cc:9:9: error: expected primary-expression before 'int'
    9 | 　　for(int i=0;i<N;i++){
      |         ^~~
a.cc:9:17: error: 'i' was not declared in this scope
    9 | 　　for(int i=0;i<N;i++){
      |                 ^
a.cc:13:9: error: expected primary-expression before 'int'
   13 | 　　for(int l=0;l<N;l++){
      |         ^~~
a.cc:13:17: error: 'l' was not declared in this scope
   13 | 　　for(int l=0;l<N;l++){
      |                 ^
a.cc:21:16: error: 'mod' was not declared in this scope
   21 | 　　while(ansd>mod){
      |                ^~~
a.cc:21:1: error: '\U00003000\U00003000while' was not declared in this scope
   21 | 　　while(ansd>mod){
      | ^~~~~~~~~
a.cc:24:1: error: '\U00003000\U00003000' was not declared in this scope
   24 | 　　
      | ^~~~
a.cc:26:1: error: '\U00003000\U00003000return' was not declared in this scope
   26 | 　　return 0;
      | ^~~~~~~~~~