Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <bitset>
#include <stack>
#include <utility>
#include <numeric>
#include <algorithm>
#include <functional>
#include <complex>
#include <string>
#include <sstream>
#include <fstream> 
#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cstring>
#include <math.h>
#include <cmath>
using namespace std;
int main(){
   int N,K,X,Y;
   int s[100];
   int i =0;
   int c[26]
   for(int i=0;i<26;i++){
   c[i] = 0;	
   }
   int wrong = 0;
   while(cin >> s[i]){
   i++;	
   }
   for(int j=0;j<i;j++){
   if(s[j] == 'a' ){
   c[0]++;
   }else if(s[j] == 'b'){
   c[1]++;	
   }else if(s[j] == 'b'){
   c[1]++;	
   }else if(s[j] == 'c'){
   c[2]++;	
   }else if(s[j] == 'd'){
   c[3]++;	
   }else if(s[j] == 'e'){
   c[4]++;	
   }else if(s[j] == 'f'){
   c[5]++;	
   }else if(s[j] == 'g'){
   c[6]++;	
   }else if(s[j] == 'h'){
   c[7]++;	
   }else if(s[j] == 'i'){
   c[8]++;	
   }else if(s[j] == 'j'){
   c[9]++;	
   }else if(s[j] == 'k'){
   c[10]++;	
   }else if(s[j] == 'l'){
   c[11]++;	
   }else if(s[j] == 'm'){
   c[12]++;	
   }else if(s[j] == 'n'){
   c[13]++;	
   }else if(s[j] == 'o'){
   c[14]++;	
   }else if(s[j] == 'p'){
   c[15]++;	
   }else if(s[j] == 'q'){
   c[16]++;	
   }else if(s[j] == 'r'){
   c[17]++;	
   }else if(s[j] == 's'){
   c[18]++;	
   }else if(s[j] == 't'){
   c[19]++;	
   }else if(s[j] == 'u'){
   c[20]++;	
   }else if(s[j] == 'v'){
   c[21]++;	
   }else if(s[j] == 'w'){
   c[22]++;	
   }else if(s[j] == 'x'){
   c[23]++;	
   }else if(s[j] == 'y'){
   c[24]++;	
   }else if(s[j] == 'z'){
   c[25]++;	
   }
   }
   for(int k=0;k<26;k++){
   if(c[k] % 2 == 1){
   wrong++;	
   }
   }
   if(wrong == 0){
   cout << "Yes" << endl;
   }else{
   cout << "No" << endl;	
   }    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:29:4: error: expected initializer before 'for'
   29 |    for(int i=0;i<26;i++){
      |    ^~~
a.cc:29:24: error: expected ';' before ')' token
   29 |    for(int i=0;i<26;i++){
      |                        ^
      |                        ;
a.cc:38:4: error: 'c' was not declared in this scope
   38 |    c[0]++;
      |    ^
a.cc:40:4: error: 'c' was not declared in this scope
   40 |    c[1]++;
      |    ^
a.cc:42:4: error: 'c' was not declared in this scope
   42 |    c[1]++;
      |    ^
a.cc:44:4: error: 'c' was not declared in this scope
   44 |    c[2]++;
      |    ^
a.cc:46:4: error: 'c' was not declared in this scope
   46 |    c[3]++;
      |    ^
a.cc:48:4: error: 'c' was not declared in this scope
   48 |    c[4]++;
      |    ^
a.cc:50:4: error: 'c' was not declared in this scope
   50 |    c[5]++;
      |    ^
a.cc:52:4: error: 'c' was not declared in this scope
   52 |    c[6]++;
      |    ^
a.cc:54:4: error: 'c' was not declared in this scope
   54 |    c[7]++;
      |    ^
a.cc:56:4: error: 'c' was not declared in this scope
   56 |    c[8]++;
      |    ^
a.cc:58:4: error: 'c' was not declared in this scope
   58 |    c[9]++;
      |    ^
a.cc:60:4: error: 'c' was not declared in this scope
   60 |    c[10]++;
      |    ^
a.cc:62:4: error: 'c' was not declared in this scope
   62 |    c[11]++;
      |    ^
a.cc:64:4: error: 'c' was not declared in this scope
   64 |    c[12]++;
      |    ^
a.cc:66:4: error: 'c' was not declared in this scope
   66 |    c[13]++;
      |    ^
a.cc:68:4: error: 'c' was not declared in this scope
   68 |    c[14]++;
      |    ^
a.cc:70:4: error: 'c' was not declared in this scope
   70 |    c[15]++;
      |    ^
a.cc:72:4: error: 'c' was not declared in this scope
   72 |    c[16]++;
      |    ^
a.cc:74:4: error: 'c' was not declared in this scope
   74 |    c[17]++;
      |    ^
a.cc:76:4: error: 'c' was not declared in this scope
   76 |    c[18]++;
      |    ^
a.cc:78:4: error: 'c' was not declared in this scope
   78 |    c[19]++;
      |    ^
a.cc:80:4: error: 'c' was not declared in this scope
   80 |    c[20]++;
      |    ^
a.cc:82:4: error: 'c' was not declared in this scope
   82 |    c[21]++;
      |    ^
a.cc:84:4: error: 'c' was not declared in this scope
   84 |    c[22]++;
      |    ^
a.cc:86:4: error: 'c' was not declared in this scope
   86 |    c[23]++;
      |    ^
a.cc:88:4: error: 'c' was not declared in this scope
   88 |    c[24]++;
      |    ^
a.cc:90:4: error: 'c' was not declared in this scope
   90 |    c[25]++;
      |    ^
a.cc:94:7: error: 'c' was not declared in this scope
   94 |    if(c[k] % 2 == 1){
      |       ^