関連ワード:  explain the structure of c program    explain the structure of c program with example    explain the structure of c program with suitable example    explain the structure of c program in detail    explain the structure of c program with neat diagram    explain the structure of c programming language    explain the structure of c program with diagram    explain the structure of c program in short    explain the structure of c program with the help of block diagram    explain the structure of c program with syntax and example