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C++代码/GESP考级/三级/202609公共二进制位.cpp

@@ -0,0 +1,53 @@
+#include <bits/stdc++.h>
+#define endl '\n'
+using namespace std;
+
+int n, num;
+int s[100]; 
+
+string str = "01";
+
+// 10进制转换成 2进制
+string f(int n){
+	if(n == 0) return "0";
+	string re = "";
+	while(n > 0){
+		int g = n % 2;
+		
+		re = str[g] + re;
+		
+		n /= 2;
+	} 
+	return re;
+} 
+
+
+int main(){
+	cin >> n;
+	int maxx = 0; 
+	for(int i = 1; i <= n; i++){
+		cin >> num;
+		string curr = f(num);
+		int len = curr.size();
+		int idx = 0;
+		for(int j = len - 1; j >= 0; j--){
+			char c = curr[j];
+			if(c == '1'){
+				s[idx]++;
+			}
+			idx++;
+		}
+		maxx = max(maxx, idx); // 统计最长字符串
+//		cout << "当前这个数二进制是" << curr << "    " << idx << endl; 
+	}
+	
+	int cnt = 0;
+	for(int i = 0; i < maxx; i++){
+		if(s[i] == n) {
+			cnt++;
+		}
+	}
+	cout << cnt;
+	return 0;
+}
+