#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: 1