More code help...

duckwithanokhat · September 13, 2016

So I got this block of code in C:

EDIT: Its jobs is to calculate store credit and to see if a "customer" has exceeded the maximum store credit.

#include <stdio.h>
#include <stdlib.h>
#define MAX_CRED 500.00
int main()
{
    //Declarations
    char name1, name2, name3[21];
    float start_bal1, start_bal2, start_bal3;
    float end_bal1, end_bal2, end_bal3;
    float payment1, payment2, payment3;
    float new_charge1, new_charge2, new_charge3;
    float cred_left1, cred_left2, cred_left3;
    int acc_num1, acc_num2, acc_num3;
    //Prompt + User Input
    puts("Please enter a single-digit account number");
    scanf("%i", &acc_num1);
    puts("Please enter the corresponding customer name.");
    scanf("%s", &name1);
    puts("Please enter the the corresponding customer's opening balance:");
    scanf("%f", &start_bal1);
    puts("Please enter the the corresponding customer's new charges:");
    scanf("%f", &new_charge1);
    puts("Please enter the the corresponding customer's payments:");
    scanf("%f", &payment1);

    //Calculations
    end_bal1 = start_bal1 + new_charge1 - payment1;
    cred_left1 = MAX_CRED - end_bal1;

    //Prompt + User Input
    puts("Please enter a single-digit account number");
    scanf("%i", &acc_num2);
    puts("Please enter the corresponding customer name.");
    scanf("%s", &name2);
    puts("Please enter the the corresponding customer's opening balance:");
    scanf("%f", &start_bal2);
    puts("Please enter the the corresponding customer's new charges:");
    scanf("%f", &new_charge2);
    puts("Please enter the the corresponding customer's payments:");
    scanf("%f", &payment2);

    //Calculations
    end_bal2 = start_bal2 + new_charge2 - payment2;
    cred_left2 = MAX_CRED - end_bal2;

     //Prompt + User Input
    puts("Please enter a single-digit account number");
    scanf("%i", &acc_num3);
    puts("Please enter the corresponding customer name.");
    scanf("%s", &name3);
    puts("Please enter the the corresponding customer's opening balance:");
    scanf("%f", &start_bal3);
    puts("Please enter the the corresponding customer's new charges:");
    scanf("%f", &new_charge3);
    puts("Please enter the the corresponding customer's payments:");
    scanf("%f", &payment3);

    //Calculations
    end_bal3 = start_bal3 + new_charge3 - payment3;
    cred_left3 = MAX_CRED - end_bal3;

    //Display results in table
    printf("%5i%20s%20.2f%20.2f", acc_num1, name1, end_bal1, cred_left1);
    printf("%5i%20s%20.2f%20.2f", acc_num2, name2, end_bal2, cred_left2);
    printf("%5i%20s%20.2f%20.2f", acc_num3, name3, end_bal3, cred_left3);
    
    //Codeblocks usually closes console window after finishing a run, this line stops that.
    system("pause");
    
    return 0;
}

And when I run it and input my values I get to the very last prompt ("Please enter customer's payments:" for variable "payment3") and press enter, I get "Program received signal SIGSEGV, segmentation failed." and a warning appears on line 63,

which is printf("%5i%20s%20.2f%20.2f", acc_num1, name1, end_bal1, cred_left1); . What is happening?