为什么状态数组的值没有显示在 C 程序的输出中？

Question

I'm making a C program in which it'll ask full name and address from the user and the program should give output like this:

Priya Shah
100,mainstreet
city,subdistrict 
gujarat,382007

But program is giving output like this:

Priya Shah
100,mainstreet
city,subdistrict
,382007

    #include <stdio.h>

    void main(){
        char fname[10],lname[30];
        char house_no[5],street[40],city[30],taluka[20],state[70]="state",pin[6];
        
        printf("Enter your Full Name: ");
        scanf("%s %s",fname,lname);
    
        printf("Enter your Address: (Format of Address is: HouseNo,Street,City,Taluka,State-pin) ");
        scanf("%s %s %s %s %s %s",house_no,street,city,taluka,state,pin);
    
        printf("%s %s\n%s,%s\n%s,%s\n%

s,%s",fname,lname,house_no,street,city,taluka,state,pin);
}

I have also initialised the state array then also it is not showing in the output

Answer 1

I understand your question and i would like to tell that every string has a null character which consume one block of space and in your case . you wrote pin[6] and you want enter a pin code , like 110010 it is already 6 character but string automatically add null character so in this case you need to replace pin[6] with pin[7]

thank you.......

Answer 2

pin[6] is too short to store 6-character strings like 382007 . A room for terminating null-character is required. It looks like st happened to be placed after pin and its data is destroyed due to the out-of-range write.

Allocate enough elements and specify the maximum number of characters to read to prevent buffer overrun. Also you should check the return values of scanf() to check if it succeeded to read all required things.

#include <stdio.h>

int main(void){
    char fname[10],lname[30];
    char house_no[5],street[40],city[30],taluka[20],st[70]="state",pin[20];
    
    printf("Enter your Full Name: ");
    if (scanf("%9s %29s",fname,lname) != 2){
        fputs("read error\n", stderr);
        return 1;
    }

    printf("Enter your Address: (Format of Address is: HouseNo,Street,City,Taluka,State-pin) ");
    if(scanf("%4s %39s %29s %19s %69s %19s",house_no,street,city,taluka,st,pin) != 6){
        fputs("read error\n", stderr);
        return 1;
    }

    printf("%s %s\n%s,%s\n%s,%s\n%s,%s",fname,lname,house_no,street,city,taluka,st,pin);
}