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• how scanf single char in c 8 answers

i wanted make program can read right answers, check students answers comparing right answers , show points of each. problem every time insert first answer program skips second 1 , jumps third. here's how turns out every time:

"insert answer 1: a

insert answer 2: insert answer 3:"

and here's code:

#include <stdio.h>  int main() {     char v[30], a[30][20];     int i,j,c;      (i=0; i<30; i++)     {         printf("insert answer %d: ", i+1);         scanf("%c", &v[i]);     }      for(j=0; j<20; j++)     {         printf("student %d\n", j+1);          (i=0; i<30; i++)         {             printf("insert answer %d: ", i+1);             scanf("%c", &a[i][j]);         }     }      for(j=0; j<20; j++)     {         c=0;         printf("student %d\n", j+1);          (i=0; i<30; i++)         {             if (v[i] == a[i][j])                 c=c+1;         }          printf("points: %d\n", c);      }      return 0; } 

scanf( "%c", &var ); reads 1 character stdin. first scanf reads character , second scanf reads newline \n. solve problem, use

scanf( " %c", &var );         ^----- note space 

putting space before %c tells scanf skip whitespace (including newlines) before reading character.