AtCoder Beginner Contest 203 (A~D,玄学二分场)
Posted tags: 篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了AtCoder Beginner Contest 203 (A~D,玄学二分场)相关的知识,希望对你有一定的参考价值。 补题链接:Here 给出 \\(a,b,c\\) 三个正整数,现请打印各种情况的答案: 水题(RioTian是个连水题的都WA2发的FW....) 包租婆有一个 \\(n\\) 层,每层 \\(m\\) 个房间的出租房,每个房间的房号:\\(i0j(i\\in[1,n],j\\in[1,j])\\) 求房号累计和 模拟题意即可 太郎决定去旅行,但他只有 \\(k\\) 元钱,每走过一个村庄要给 \\(1\\) 块钱,但太郎有 \\(k\\) 个朋友,如果太郎经过他朋友居住的村子的话会得到 \\(B_i\\) 元钱作为旅费的补充 请问太郎最远能到达多远的村子(输出村子号), 注意太郎从 \\(0\\) 号村子出发 模拟,如果 \\(k > a_i\\) 则累加 \\(b_i\\) 写法上用 STL 优化 【题意待补充】 玄学二分+玄学前缀和 E,F 由于蓝桥杯暂不填坑 以上是关于AtCoder Beginner Contest 203 (A~D,玄学二分场)的主要内容,如果未能解决你的问题,请参考以下文章 AtCoder Beginner Contest 115 题解
A - Chinchirorin
void solve() {
int a, b, c;
cin >> a >> b >> c;
if (a == b) cout << c << "\\n";
else if (b == c) cout << a << "\\n";
else if (a == c) cout << b << "\\n";
else cout << "0\\n";
}
B - AtCoder Condominium
void solve() {
int n, k;
cin >> n >> k;
int sum = 0;
for (int i = 1; i <= n; ++i)
for (int j = 1; j <= k; ++j)
sum += (i * 100 + j);
cout << sum ;
}
C - Friends and Travel costs
using ll = long long;
void solve() {
ll n, k; cin >> n >> k;
vector<pair<ll, ll>>v(n);
for (ll i = 0; i < n; ++i)
cin >> v[i].first >> v[i].second;
sort(v.begin(), v.end());
for (auto x : v) {
if (x.first > k)break;
k += x.second;
}
cout << k;
}
D - Pond
const int N = 1000;
int A[800][800];
int S[801][801];
void solve() {
int N, K;
cin >> N >> K;
for (int i = 0; i < N; i++)for (int j = 0; j < N; j++)cin >> A[i][j];
int L = 0, R = 1e9 + 1;
while (R - L > 1) {
int mid = (L + R) / 2;
for (int i = 0; i < N; i++)for (int j = 0; j < N; j++)S[i + 1][j + 1] = mid <= A[i][j];
for (int i = 1; i <= N; i++)for (int j = 1; j <= N; j++) {
S[i][j] += S[i - 1][j] + S[i][j - 1] - S[i - 1][j - 1];
}
bool fn = false;
for (int i = K; i <= N; i++)for (int j = K; j <= N; j++) {
if (S[i][j] - S[i - K][j] - S[i][j - K] + S[i - K][j - K] <= K * K / 2)fn = true;
}
if (fn)R = mid;
else L = mid;
}
cout << L << endl;
}