結果

問題 No.1251 絶対に間違ってはいけない最小化問題
ユーザー LayCurse
提出日時 2020-10-09 21:29:28
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 35 ms / 2,000 ms
コード長 10,045 bytes
コンパイル時間 2,431 ms
コンパイル使用メモリ 217,180 KB
最終ジャッジ日時 2025-01-15 03:59:36
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 42
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#pragma GCC optimize ("Ofast")
#include<bits/stdc++.h>
using namespace std;
void*wmem;
char memarr[96000000];
template<class T> inline void walloc1d(T **arr, int x, void **mem = &wmem){
static int skip[16] = {0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
(*mem) = (void*)( ((char*)(*mem)) + skip[((unsigned long long)(*mem)) & 15] );
(*arr)=(T*)(*mem);
(*mem)=((*arr)+x);
}
template<class T1> void sortA_L(int N, T1 a[], void *mem = wmem){
sort(a, a+N);
}
template<class T1, class T2> void sortA_L(int N, T1 a[], T2 b[], void *mem = wmem){
int i;
pair<T1, T2>*arr;
walloc1d(&arr, N, &mem);
for(i=(0);i<(N);i++){
arr[i].first = a[i];
arr[i].second = b[i];
}
sort(arr, arr+N);
for(i=(0);i<(N);i++){
a[i] = arr[i].first;
b[i] = arr[i].second;
}
}
inline int my_getchar_unlocked(){
static char buf[1048576];
static int s = 1048576;
static int e = 1048576;
if(s == e && e == 1048576){
e = fread_unlocked(buf, 1, 1048576, stdin);
s = 0;
}
if(s == e){
return EOF;
}
return buf[s++];
}
inline void rd(int &x){
int k;
int m=0;
x=0;
for(;;){
k = my_getchar_unlocked();
if(k=='-'){
m=1;
break;
}
if('0'<=k&&k<='9'){
x=k-'0';
break;
}
}
for(;;){
k = my_getchar_unlocked();
if(k<'0'||k>'9'){
break;
}
x=x*10+k-'0';
}
if(m){
x=-x;
}
}
inline void rd(long long &x){
int k;
int m=0;
x=0;
for(;;){
k = my_getchar_unlocked();
if(k=='-'){
m=1;
break;
}
if('0'<=k&&k<='9'){
x=k-'0';
break;
}
}
for(;;){
k = my_getchar_unlocked();
if(k<'0'||k>'9'){
break;
}
x=x*10+k-'0';
}
if(m){
x=-x;
}
}
struct MY_WRITER{
char buf[1048576];
int s;
int e;
MY_WRITER(){
s = 0;
e = 1048576;
}
~MY_WRITER(){
if(s){
fwrite_unlocked(buf, 1, s, stdout);
}
}
}
;
MY_WRITER MY_WRITER_VAR;
void my_putchar_unlocked(int a){
if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){
fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout);
MY_WRITER_VAR.s = 0;
}
MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a;
}
inline void wt_L(char a){
my_putchar_unlocked(a);
}
inline void wt_L(long long x){
int s=0;
int m=0;
char f[20];
if(x<0){
m=1;
x=-x;
}
while(x){
f[s++]=x%10;
x/=10;
}
if(!s){
f[s++]=0;
}
if(m){
my_putchar_unlocked('-');
}
while(s--){
my_putchar_unlocked(f[s]+'0');
}
}
template<class T> struct Arr1d{
int n;
int mem;
T*d;
T& operator[](int a){
return d[a];
}
void sort(){
reset();
std::sort(d, d+n);
}
int set_cumulative_sum;
int cumulative_sum_mem;
T*cumulative_sum;
void setSum(void){
int i;
set_cumulative_sum = 1;
if(cumulative_sum_mem < n+1){
delete[] cumulative_sum;
cumulative_sum = new T[n+1];
cumulative_sum_mem = n+1;
}
cumulative_sum[0] = 0;
for(i=(0);i<(n);i++){
cumulative_sum[i+1] = cumulative_sum[i] + d[i];
}
}
T getSum(int i, int j){
if(set_cumulative_sum==0){
setSum();
}
return cumulative_sum[j+1] - cumulative_sum[i];
}
int set_const_len_left;
int const_len_left_mem;
int*const_len_left;
void setConstLenLeft(void){
int i;
set_const_len_left = 1;
if(const_len_left_mem < n){
delete[] const_len_left;
const_len_left = new int[n];
const_len_left_mem = n;
}
for(i=(0);i<(n);i++){
const_len_left[i] = 1;
}
for(i=(1);i<(n);i++){
if(d[i]==d[i-1]){
const_len_left[i] = const_len_left[i-1] + 1;
}
}
}
int ConstLenLeft(int st, T val){
if(!set_const_len_left){
setConstLenLeft();
}
if(val != d[st]){
return 0;
}
return const_len_left[st];
}
int ConstLenLeft(int st){
if(!set_const_len_left){
setConstLenLeft();
}
return const_len_left[st];
}
int ConstLenLeftCyclic(int st, T val){
if(!set_const_len_left){
setConstLenLeft();
}
st %= n;
if(st < 0){
st += n;
}
if(val != d[st]){
return 0;
}
if(const_len_left[st] != st+1 || d[st] != d[n-1]){
return const_len_left[st];
}
if(const_len_left[n-1] == n){
return 1073709056;
}
return const_len_left[st] + const_len_left[n-1];
}
int ConstLenLeftCyclic(int st){
if(!set_const_len_left){
setConstLenLeft();
}
st %= n;
if(st < 0){
st += n;
}
if(const_len_left[st] != st+1 || d[st] != d[n-1]){
return const_len_left[st];
}
if(const_len_left[n-1] == n){
return 1073709056;
}
return const_len_left[st] + const_len_left[n-1];
}
int set_const_len_right;
int const_len_right_mem;
int*const_len_right;
void setConstLenRight(void){
int i;
set_const_len_right = 1;
if(const_len_right_mem < n){
delete[] const_len_right;
const_len_right = new int[n];
const_len_right_mem = n;
}
for(i=(0);i<(n);i++){
const_len_right[i] = 1;
}
for(i=(n-1)-1;i>=(0);i--){
if(d[i]==d[i+1]){
const_len_right[i] = const_len_right[i+1] + 1;
}
}
}
int ConstLenRight(int st, T val){
if(!set_const_len_right){
setConstLenRight();
}
if(val != d[st]){
return 0;
}
return const_len_right[st];
}
int ConstLenRight(int st){
if(!set_const_len_right){
setConstLenRight();
}
return const_len_right[st];
}
int ConstLenRightCyclic(int st, T val){
if(!set_const_len_right){
setConstLenRight();
}
if(val != d[st]){
return 0;
}
st %= n;
if(st < 0){
st += n;
}
if(const_len_right[st] != n-st || d[st] != d[0]){
return const_len_right[st];
}
if(const_len_right[0] == n){
return 1073709056;
}
return const_len_right[st] + const_len_right[0];
}
int ConstLenRightCyclic(int st){
if(!set_const_len_right){
setConstLenRight();
}
st %= n;
if(st < 0){
st += n;
}
if(const_len_right[st] != n-st || d[st] != d[0]){
return const_len_right[st];
}
if(const_len_right[0] == n){
return 1073709056;
}
return const_len_right[st] + const_len_right[0];
}
int set_dhist;
int dhist_mem;
int*dhist;
T dhist_mn;
T dhist_mx;
void setDHist(void){
int i;
int len;
set_dhist = 1;
if(n==0){
return;
}
dhist_mn = dhist_mx = d[0];
for(i=(1);i<(n);i++){
if(dhist_mn > d[i]){
dhist_mn = d[i];
}
if(dhist_mx < d[i]){
dhist_mx = d[i];
}
}
len = dhist_mx - dhist_mn + 1;
if(dhist_mem < len){
delete[] dhist;
dhist = new int[len];
dhist_mem = len;
}
for(i=(0);i<(len);i++){
dhist[i] = 0;
}
for(i=(0);i<(n);i++){
dhist[d[i] - dhist_mn]++;
}
}
int dHist(T x){
if(set_dhist==0){
setDHist();
}
if(n == 0 || x < dhist_mn || x > dhist_mx){
return 0;
}
return dhist[x - dhist_mn];
}
void reset(){
set_cumulative_sum = 0;
set_const_len_left = 0;
set_const_len_right = 0;
set_dhist = 0;
}
void memory_expand(int nn){
if(mem < nn){
delete[] d;
d = new T[nn];
mem = nn;
}
}
void malloc(int nn){
reset();
memory_expand(nn);
n = nn;
}
void setN(int nn){
reset();
memory_expand(nn);
n = nn;
}
void set(vector<T> &a){
int i;
int nn = a.size();
setN(nn);
for(i=(0);i<(nn);i++){
d[i] = a[i];
}
}
void set(int nn, T a[]){
int i;
setN(nn);
for(i=(0);i<(nn);i++){
d[i] = a[i];
}
}
void free(){
destructor();
}
void constructor(){
n = mem = 0;
d = NULL;
set_cumulative_sum = 0;
cumulative_sum_mem = 0;
cumulative_sum = NULL;
set_const_len_left = 0;
const_len_left_mem = 0;
const_len_left = NULL;
set_const_len_right = 0;
const_len_right_mem = 0;
const_len_right = NULL;
set_dhist = 0;
dhist_mem = 0;
dhist = NULL;
}
void constructor(int nn){
constructor();
malloc(nn);
}
void destructor(){
delete[] d;
d = NULL;
mem = n = 0;
set_cumulative_sum = 0;
cumulative_sum_mem = 0;
delete[] cumulative_sum;
cumulative_sum = NULL;
set_const_len_left = 0;
const_len_left_mem = 0;
delete[] const_len_left;
const_len_left = NULL;
set_const_len_right = 0;
const_len_right_mem = 0;
delete[] const_len_right;
const_len_right = NULL;
set_dhist = 0;
dhist_mem = 0;
delete[] dhist;
dhist = NULL;
}
Arr1d(){
constructor();
}
Arr1d(int nn){
constructor(nn);
}
~Arr1d(){
destructor();
}
}
;
int N;
long long At[200000];
long long Bt[200000];
Arr1d<long long> A;
Arr1d<long long> B;
int main(){
int i;
wmem = memarr;
long long res1;
long long res2;
long long tmp = 0;
rd(N);
{
int Lj4PdHRW;
for(Lj4PdHRW=(0);Lj4PdHRW<(N);Lj4PdHRW++){
rd(At[Lj4PdHRW]);
}
}
{
int e98WHCEY;
for(e98WHCEY=(0);e98WHCEY<(N);e98WHCEY++){
rd(Bt[e98WHCEY]);
}
}
sortA_L(N,At,Bt);
A.set(N,At);
B.set(N,Bt);
for(i=(0);i<(N);i++){
tmp += (A[i] - A[0]) * B[i];
}
res1 = 0;
res2 = tmp;
for(i=(1);i<(N);i++){
tmp += B.getSum(0,i-1) * (A[i] - A[i-1]);
tmp -= B.getSum(i,N-1) * (A[i] - A[i-1]);
if(res2 > tmp){
res1 = i;
res2 = tmp;
}
}
wt_L(A[res1]);
wt_L(' ');
wt_L(res2);
wt_L('\n');
return 0;
}
// cLay varsion 20201003-1
// --- original code ---
// int N;
// ll At[2d5], Bt[2d5];
// Arr1d<ll> A, B;
// {
// ll res1, res2;
// ll tmp = 0;
// rd(N,At(N),Bt(N));
// sortA(N,At,Bt);
// A.set(N,At);
// B.set(N,Bt);
// rep(i,N) tmp += (A[i] - A[0]) * B[i];
// res1 = 0;
// res2 = tmp;
// rep(i,1,N){
// tmp += B.getSum(0,i-1) * (A[i] - A[i-1]);
// tmp -= B.getSum(i,N-1) * (A[i] - A[i-1]);
// if(res2 > tmp){
// res1 = i;
// res2 = tmp;
// }
// }
// wt(A[res1], res2);
// }
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