Iti trimit solutia oficiala. Succes!
#include <iostream>
#include <cstring>
using namespace std;
bool Cifra(char X)
{
return X >='0' && X<='9';
}
int main()
{
char s[256];
cin.getline(s , 256);
int coefX = 0 , coefY = 0, coefZ = 0;
bool apareX = false, apareY = false , apareZ = false;
int semn = 1 , coef = 0;
bool amCoef = false;
int n = strlen(s);
for(int i = 0 ; i < n ; i ++)
{
if(s[i] == '+')
semn = 1;
if(s[i] == '-')
semn = -1;
if(Cifra(s[i]))
{
coef = 0, amCoef = true;
while(Cifra(s[i]))
coef = 10 * coef + s[i] - '0' , i ++;
}
if(s[i] == 'x' || s[i] == 'y' || s[i] == 'z')
{
if(!amCoef)
coef = 1;
if(s[i] == 'x')
apareX = true, coefX += semn * coef;
if(s[i] == 'y')
apareY = true, coefY += semn * coef;
if(s[i] == 'z')
apareZ = true, coefZ += semn * coef;
semn = 1, coef = 0, amCoef = false;
}
}
int cf[4]={-2000000001 , coefX, coefY, coefZ}, apare[4]={0 , apareX,apareY,apareZ};
int pozMax = 0;
for(int i = 1; i <= 3 ; i ++)
if(apare[i])
if(cf[i] > cf[pozMax])
pozMax = i;
if(pozMax == 1)
cout << cf[pozMax] << "x";
if(pozMax == 2)
cout << cf[pozMax] << "y";
if(pozMax == 3)
cout << cf[pozMax] << "z";
return 0;
}
