C. 身份證號碼最後一位

#include <stdio.h> void zi() { char a[18]; int z; scanf("%s",a); z=(a[0]-'0')*7+(a[1]-'0')*9+(a[2]-'0')*10+(a[3]-'0')*5+(a[4]-'0')*8+(a[5]-'0')*4+(a[6]-'0')*2+(a[7]-'0')*1+(a[8]-'0')*6+(a[9]-'0')*

>>阅读原文<<