输出n能拿27%
写完判断就剩9% 挺离谱的 有没有带哥知道错在哪了
1题 我日我懂了!!!! 我没判断空行 他有空行 但是不算合法的
#include <iostream>
#include<string>
#include <ctype.h>
using namespace std;
bool judge() {
string s;
getline(cin, s);
if (s.length() > 10)return false;
for(int i=0;i<s.length();++i){
if (!isalpha(s[i])) {
return false;
}
}
return true;
}
int main() {
int n;
cin >> n;
judge();
int ans = 0;
for (int i = 0; i < n; ++i) {
bool ansb = judge();
if (ansb)ans++;
}
cout << ans << endl;
return 0;
}
2题
#include <iostream>
#include<list>
using namespace std;
void print(list<int> &li) {
for (auto i:li) {
cout << i << " ";
}
cout << endl;
}
void print2(list<int> &lA, list<int> &lB, int first) {
auto itA = lA.begin();
auto itB = lB.begin();
if (first == 1) {
while (itB != lB.end()) {
cout << *itB << " " << *itA << " ";
itB++;
itA++;
}
} else {
while (itB != lB.end()) {
cout << *itA << " " << *itB << " ";
itB++;
itA++;
}
}
cout << endl;
}
int main() {
// ios::sync_with_stdio(false);
int n, m;
cin >> n >> m;
list<int> lA;
list<int> lB;
for (int i = 0; i < n; ++i) {
if (i % 2 == 0) {
lA.push_back(i + 1);
} else {
lB.push_back(i + 1);
}
}
int first = 0;
for (int i = 0; i < m; ++i) {
int op;
cin >> op;
if (op == 2) {
//swap
first = first ^ 1;
} else if (op == 1) {
if (first == 1) {
first = 0;
int item = lB.front();
lB.pop_front();
lB.push_back(item);
} else {
first = 1;
int item = lA.front();
lA.pop_front();
lA.push_back(item);
}
}
// print2(lA,lB,first);
}
print2(lA, lB, first);
return 0;
}
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