数组s【a【i】】++是什么意思

Question

scanf("%d", &n);  
for( i = 1; i <= n; i++)  
{  
    scanf("%d", &a[i]);  
    if(a[i] < 100000)  
        s[a[i]]++;  
}  

Answer 1

s[a[i]]++; 假如a[i]为3，表达式为s[3]++，数组元素s[3]+1