結果

問題 No.1724 [Cherry 3rd Tune A] Lápiz labial de Sonia
ユーザー LayCurse
提出日時 2021-10-29 21:22:55
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 78 ms / 2,000 ms
コード長 3,303 bytes
コンパイル時間 3,247 ms
コンパイル使用メモリ 223,600 KB
最終ジャッジ日時 2025-01-25 08:21:27
ジャッジサーバーID
(参考情報)
judge3 / judge4
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ファイルパターン 結果
other AC * 38
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")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("inline")
#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 T> inline void walloc1d(T **arr, int x1, int x2, void **mem = &wmem){
walloc1d(arr, x2-x1, mem);
(*arr) -= x1;
}
template<class T1, class T2> void sortA_index_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++){
b[i] = i;
}
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(const char c[]){
int i=0;
for(i=0;c[i]!='\0';i++){
my_putchar_unlocked(c[i]);
}
}
int main(){
int i;
wmem = memarr;
int N;
rd(N);
int K;
rd(K);
long long A[N];
{
int Lj4PdHRW;
for(Lj4PdHRW=(0);Lj4PdHRW<(N);Lj4PdHRW++){
rd(A[Lj4PdHRW]);
}
}
long long B[N];
{
int e98WHCEY;
for(e98WHCEY=(0);e98WHCEY<(N);e98WHCEY++){
rd(B[e98WHCEY]);
}
}
int ind[N];
char res[N+2] = {};
for(i=(0);i<(N);i++){
A[i] = A[i] - B[i];
}
sortA_index_L(N,A,ind);
for(i=(0);i<(N);i++){
res[i] = 'B';
}
for(i=(0);i<(K);i++){
res[ind[N-1-i]] = 'A';
}
wt_L(res);
wt_L('\n');
return 0;
}
// cLay version 20211024-1
// --- original code ---
// int @N, @K; ll @A[N], @B[N];
// int ind[];
// char res[N+2] = {};
// rep(i,N) A[i] = A[i] - B[i];
// sortA_index(N,A,ind);
// rep(i,N) res[i] = 'B';
// rep(i,K) res[ind[N-1-i]] = 'A';
// wt(res);
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