#include <iostream> #include <cstring> using namespace std; int main() { char str[1001]; // 1000个字符 + 1个结束符 // 读取一行字符串 cin.getline(str, 1001); int count[26] = {0}; // 统计每个字母出现的次数 for (int i = 0; i < strlen(str); i++) { if (str[i] >= 'a' && str[i] <= 'z') { count[str[i] - 'a']++; } } // 找出出现次数最多的字母 int maxCount = 0; char maxChar = 'a'; for (int i = 0; i < 26; i++) { if (count[i] > maxCount) { maxCount = count[i]; maxChar = 'a' + i; } } cout << maxChar << endl; return 0; }