How to save value entered by the user in 2 different arrays?

Question

Okay, this code is part of an attempt to solve an exercise. My goal is to convert all values from Kelvin to Celcius or vice versa and to present all values entered by the user whether they are temperature values in Celcius or Kelvin. I have already created 2 arrays where I store the inserted value. The problem is in output the values pass forward positions. Output print: output. Ex : Inserting 3 temperatures in Celcius in the output appear in the 0.1.2 place and then if we insert temperature in Kelvin these will start to appear in the 3 position instead of starting again.

#include <stdio.h>
#include <stdlib.h>

float CalculaC(float tK);
float CalculaK(float tC);
void ShowResults(float storesC[], float storesK[], int elementNumbers);

int main(int argc, char *argv[])
{
float tC, tK, storesC[11], storesK[11], calC, calK;
int i,j;
char var;

for(i = 0; i < 10; i++)
{
    printf("Insert 10 temperatures values and identify it as Celsius or Kelvin with K or C respectively:");
    scanf("%f", &tC);

    var = getchar();

    if(var == 'C' || var == 'c')
    {
        storesC[i] = tC;
        calK = CalculaC(storesC[i]);
        printf("value: %f \n",calK); // this is just for testing if the function was working    
    }
    else if(var == 'K' || var == 'k')
    {
        storesK[i] = tC;
        calC = CalculaK(storesK[i]);
        printf("value: %f \n",calC);    // this is just for testing if the function was working 
    }
}
ShowResults(storesC,storesK,i);

getchar(); 
}

float CalculaC(float tK)
{
float temp;
temp = tK - 273.15;

return temp;
}

float CalculaK(float tC)
{
float temp;
temp = tC + 273.15;
return temp;
}

void ShowResults(float storesC[], float storesK[], int elementNumbers)
{
int j,z;
for(j = 1; j < elementNumbers; j++ )
{
    printf("Value in Celcius: %f \n", storesC[j]);
}

for(z = 1; z < elementNumbers; z++ )
{
    printf("Value in Kelvin: %f \n", storesK[z]);
}   
}

Answer 1

Two control variables are missing, one for the number of items inserted in the C array, and the other for the Kelvin array. Try this way:

float tC, tK, storesC[11], storesK[11], calC, calK;
int i,j, countC = 0, countK = 0;//Contador para Celsius e Kelvin

char var;

for(i = 0; i < 10; i++)
{
    printf("Insert 10 temperatures values and identify it as Celsius or Kelvin with K or C respectively:");
    scanf("%f", &tC);

    var = getchar();

    if(var == 'C' || var == 'c')
    {
        storesC[countC] = tC;
        calK = CalculaC(storesC[countC]);
        countC++;
        printf("value: %f \n",calK); // this is just for testing if the function was working    
    }
    else if(var == 'K' || var == 'k')
    {
        storesK[countK] = tC;
        calC = CalculaK(storesK[countK]);
        countK++;
        printf("value: %f \n",calC);    // this is just for testing if the function was working 
    }
}

and in Showresults:

void ShowResults(float storesC[], float storesK[], int countC, int countK)
{
    int j,z;

    for(j = 1; j < countC; j++ )
    {
        printf("Value in Celcius: %f \n", storesC[j]);
    }

    for(z = 1; z < countK; z++ )
    {
        printf("Value in Kelvin: %f \n", storesK[z]);
    }
}