結果
| 問題 |
No.116 門松列(1)
|
| ユーザー |
|
| 提出日時 | 2025-02-19 17:04:04 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 5,000 ms |
| コード長 | 3,360 bytes |
| コンパイル時間 | 3,509 ms |
| コンパイル使用メモリ | 282,668 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2025-02-19 17:04:10 |
| 合計ジャッジ時間 | 4,598 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 21 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template <typename T> using min_priority_queue = priority_queue<T,vector<T>,greater<T>>;
random_device seed_gen;
mt19937 engine(seed_gen());
int64_t get_time(){
struct::timespec t;
clock_gettime(CLOCK_MONOTONIC, &t);
return t.tv_sec * int64_t(1'000'000'000) + t.tv_nsec;
}
template<typename T>
void invec(vector<T> &v){
for(auto &i : v) cin >> i;
return;
}
template<typename T>
void outvec(vector<T> &v, string s = " "){
bool b = false;
for(auto i : v){
if(b) cout << s;
else b = true;
cout << i;
}
cout << endl;
return;
}
template <typename T>
bool chmin(T &a, const T& b) {
if (a > b) {
a = b; // aをbで更新
return true;
}
return false;
}
template <typename T>
bool chmax(T &a, const T& b) {
if (a < b) {
a = b; // aをbで更新
return true;
}
return false;
}
bool yn(bool b){
if(b) cout << "Yes" << endl;
else cout << "No" << endl;
return b;
}
bool check_with_simple_solution;
bool calc_time;
bool random_input;
bool debug_output;
int num_of_testcase;
using ans_type = int;
void input(){
if(num_of_testcase > 1){
}
if(random_input){
}
else{
}
return;
}
void output_input(){
return;
}
void pre_solve(){
return;
}
ans_type solve(){
int n;
cin >> n;
vector<int> A(n);
invec(A);
int ans = 0;
for(int i = 0; i < n-2; i++) {
vector<int> v = {A[i], A[i+1], A[i+2]};
if(v[0]==v[1]) continue;
if(v[1]==v[2]) continue;
if(v[2]==v[0]) continue;
vector<int> w = v;
sort(w.begin(), w.end());
if(v[1] == w[1]) continue;
ans++;
}
cout << ans << endl;
return ans_type();
}
ans_type solve_simple(){
return ans_type();
}
void output(ans_type ans){
return;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(2);
check_with_simple_solution = 0;
calc_time = 0;
random_input = 0;
debug_output = 0;
num_of_testcase = 1;
if(num_of_testcase == 0) cin >> num_of_testcase;
pre_solve();
if(check_with_simple_solution){
for(int i = 0; i < num_of_testcase; i++){
if(debug_output) cout << "begin case " << i << " " << string(16, '=') << endl;
input();
ans_type ans = solve();
if(debug_output) cout << string(16, '=') << endl;
ans_type ans_simple = solve_simple();
if(ans != ans_simple){
cout << "input: " << endl;
output_input();
cout << "output: " << endl;
output(ans);
cout << "expected: " << endl;
output(ans_simple);
}
if(debug_output) cout << "end case " << i << " " << string(16, '=') << endl;
}
}
else{
int64_t time_start = get_time();
for(int i = 0; i < num_of_testcase; i++){
input();
output(solve());
}
int64_t time_end = get_time();
if(calc_time){
double time_per_case = (time_end - time_start) / (1e9 * num_of_testcase);
cout << fixed << setprecision(3) << time_per_case << "[second/case]" << endl;
}
}
return 0;
}