#include "iostream.h" #define N 7 int fun(char s[],char a,int n) {int j; j=n; while(a<s[j] && j>0) j--; return j; } void main() {char s[N+1]; int k; for(k=1;k<=N;k++) s[k]='A'+2*k+1; cout <<fun(s,'M',N)<<endl; } 输出：_____________
