結果
| 問題 |
No.618 labo-index
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2017-12-18 15:50:53 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 160 ms / 6,000 ms |
| コード長 | 2,523 bytes |
| コンパイル時間 | 1,440 ms |
| コンパイル使用メモリ | 168,480 KB |
| 実行使用メモリ | 17,024 KB |
| 最終ジャッジ日時 | 2024-12-15 23:52:01 |
| 合計ジャッジ時間 | 4,967 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 35 |
コンパイルメッセージ
main.cpp: In function ‘void solve(int)’:
main.cpp:83:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
83 | scanf("%d", &Q);
| ~~~~~^~~~~~~~~~
main.cpp:88:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
88 | scanf("%d%d", &ty[i], &tx[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ソースコード
#include<bits/stdc++.h>
using namespace std;
typedef __int128 ll;
typedef pair<int, int> PII;
const int MM = 1e9 + 7;
const double eps = 1e-8;
const int MAXN = 5e5 + 10;
int n, m;
void prework(){
}
void read(){
}
ll now;
int N, M;
ll f[MAXN];
int tx[MAXN], ty[MAXN];
int a[MAXN];
ll b[MAXN];
void add(int x){
// cout << "ADD : " << x << endl;
for (int i = M - 1 + x; i; i /= 2)
a[i]++;
}
void del(int x){
// cout << "DEL : " << x << endl;
for (int i = M - 1 + x; i; i /= 2)
a[i]--;
}
bool test(int L){
/* cout << "TEST : " << L << ' ' << now << endl;
for (int i = 1; i < 2 * M; i++)
cout << "[" << i << ',' << a[i] << "] "; cout << endl;
*/ int ret = 0;
if (b[1] + now >= L){
return L <= a[1];
}
int l = 1, r = M;
for (int i = 1; l != r; ){
int m = (l + r) / 2;
// cout << i << ' ' << l << ' ' << r << ' ' << m << ' ' << b[m + 1] << endl;
if (b[m + 1] + now >= L){
ret += a[i * 2 + 1];
r = m, i = i * 2;
}
else{
l = m + 1;
i = i * 2 + 1;
}
}
//if (b[l] + now <= L) ret++;
return ret >= L;
}
/*
int query(){
if (b[1] + now >= a[1])
return a[1];
if (b[N] + now < 1)
return 0;
// [1, M]
for (int u = 1, l = 1, r = M; l != r; ){
int m = (l + r) / 2;
// at least (m+1) number is large then or equal to m+1
// b[]
if ()
}
}
*/
void solve(int casi){
// cout << "Case #" << casi << ": ";
int Q;
scanf("%d", &Q);
map<ll, int> X;
now = 0;
int cnt = 0;
for (int i = 1; i <= Q; i++){
scanf("%d%d", &ty[i], &tx[i]);
if (ty[i] == 3){
now += tx[i];
}
if (ty[i] == 1){
X[tx[i] - now] = 1;
f[++cnt] = tx[i] - now;
}
}
N = 0;
for (auto &x : X){
x.second = ++N;
b[N] = x.first;
}
for (M = 1; M < N; M *= 2);
for (int i = N + 1; i <= M; i++)
b[i] = b[N] + Q + 2;
for (int i = 1; i <= 2 * M; i++)
a[i] = 0;
/*
cout << N << ' ' << M << endl;
for (int i = 1; i <= M; i++)
cout << b[i] << ' '; cout << endl;
*/
now = 0;
int ans = 0;
for (int i = 1; i <= Q; i++){
if (ty[i] == 1){
add(X[tx[i] - now]);
if (test(ans + 1))
ans++;
}
else if (ty[i] == 2){
del(X[f[tx[i]]]);
if (!test(ans))
ans--;
}
else {
now += tx[i];
int L = 0, R = a[1] + 1;
while (L + 1 < R){
int Mid = (L + R) / 2;
if (test(Mid))
L = Mid;
else
R = Mid;
}
ans =L;//query();
}
printf("%d\n", ans);
}
}
void printans(){
}
int main(){
// std::ios::sync_with_stdio(false);
prework();
int T = 1;
// cin>>T;
for(int i = 1; i <= T; i++){
read();
solve(i);
printans();
}
return 0;
}