結果
| 問題 | No.5002 stick xor |
| ユーザー |
 ts_
|
| 提出日時 | 2018-05-28 21:16:09 |
| 言語 | C++11 (gcc 11.4.0) |
| 結果 |
AC
|
| 実行時間 | 990 ms / 1,000 ms |
| コード長 | 5,533 bytes |
| コンパイル時間 | 34,999 ms |
| 実行使用メモリ | 1,576 KB |
| スコア | 46,711 |
| 最終ジャッジ日時 | 2018-05-28 21:16:46 |
|
ジャッジサーバーID （参考情報） |
judge8 / |
| 純コード判定しない問題か言語 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 989 ms
1,572 KB |
| testcase_01 | AC | 989 ms
1,576 KB |
| testcase_02 | AC | 988 ms
1,576 KB |
| testcase_03 | AC | 989 ms
1,576 KB |
| testcase_04 | AC | 989 ms
1,572 KB |
| testcase_05 | AC | 990 ms
1,572 KB |
| testcase_06 | AC | 990 ms
1,572 KB |
| testcase_07 | AC | 989 ms
1,572 KB |
| testcase_08 | AC | 989 ms
1,572 KB |
| testcase_09 | AC | 990 ms
1,576 KB |
| testcase_10 | AC | 990 ms
1,572 KB |
| testcase_11 | AC | 989 ms
1,576 KB |
| testcase_12 | AC | 989 ms
1,576 KB |
| testcase_13 | AC | 989 ms
1,572 KB |
| testcase_14 | AC | 989 ms
1,576 KB |
| testcase_15 | AC | 989 ms
1,572 KB |
| testcase_16 | AC | 990 ms
1,576 KB |
| testcase_17 | AC | 989 ms
1,572 KB |
| testcase_18 | AC | 989 ms
1,572 KB |
| testcase_19 | AC | 990 ms
1,576 KB |
| testcase_20 | AC | 989 ms
1,576 KB |
| testcase_21 | AC | 989 ms
1,572 KB |
| testcase_22 | AC | 990 ms
1,576 KB |
| testcase_23 | AC | 990 ms
1,572 KB |
| testcase_24 | AC | 989 ms
1,576 KB |
| testcase_25 | AC | 989 ms
1,572 KB |
| testcase_26 | AC | 989 ms
1,572 KB |
| testcase_27 | AC | 989 ms
1,576 KB |
| testcase_28 | AC | 989 ms
1,572 KB |
| testcase_29 | AC | 990 ms
1,572 KB |
| testcase_30 | AC | 989 ms
1,576 KB |
| testcase_31 | AC | 989 ms
1,576 KB |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n) FOR(i,0,n)
#define pb emplace_back
typedef long long ll;
typedef pair<int,int> pint;
unsigned long xor128(){
static unsigned long x=123456789,y=362436069,z=521288629,w=88675123;
unsigned long t=(x^(x<<11));
x=y;y=z;z=w;
return (w=(w^(w>>19))^(t^(t>>8)));
}
double timeLimit=0.915;
const int64_t CYCLES_PER_SEC=2800000000;
struct Timer {
int64_t start;
Timer() { reset(); }
void reset() { start = getCycle(); }
void plus(double a) { start -= (a * CYCLES_PER_SEC); }
inline double get() { return (double)(getCycle() - start) / CYCLES_PER_SEC; }
inline int64_t getCycle() {
uint32_t low, high;
__asm__ volatile ("rdtsc" : "=a" (low), "=d" (high));
return ((int64_t)low) | ((int64_t)high << 32);
}
};
int n,k;
int L[501];
string s[60];
bool g[60][60],g2[60][60];
vector<pair<pint,pint> > ans(500);
int lx,rx,ly,ry;
int best,sub;
int sumx[61][61],sumy[61][61];
pair<pint,pint> calc(int length){
pair<pint,pint> ret;
pint best={-1000100010,0};
pint score;
int slide=1;
rep(i,n)rep(j,n-length+1)if(g[i][j]|g[i][j+length-1]){
score={0,0};
slide=1;
while(j-slide>=0&&g[i][j-slide]^g[i][j]&&slide<3) ++score.second,++slide;
slide=length;
while(j+slide<n&&g[i][j+slide]^g[i][j+length-1]&&slide<2+length) ++score.second,++slide;
rep(k,length){
g[i][j+k]?++score.first:--score.first;
if(k>0&&g[i][j+k-1]^g[i][j+k]) --score.second;
if(i-1>=0&&g[i][j+k]^g[i-1][j+k]) ++score.second;
if(i+1<n&&g[i][j+k]^g[i+1][j+k]) ++score.second;
}
if(best<score){
ret=make_pair(pint(i+1,j+1),pint(i+1,j+length));
best=score;
}
}
rep(i,n)rep(j,n-length+1)if(g[j][i]|g[j+length-1][i]){
score={0,0};
slide=1;
while(j-slide>=0&&g[j-slide][i]^g[j][i]&&slide<3) ++score.second,++slide;
slide=length;
while(j+slide<n&&g[j+slide][i]^g[j+length-1][i]&&slide<2+length) ++score.second,++slide;
rep(k,length){
g[j+k][i]?++score.first:--score.first;
if(k>0&&g[j+k-1][i]^g[j+k][i]) --score.second;
if(i-1>=0&&g[j+k][i]^g[j+k][i-1]) ++score.second;
if(i+1<n&&g[j+k][i]^g[j+k][i+1]) ++score.second;
}
if(best<score){
ret=make_pair(pint(j+1,i+1),pint(j+length,i+1));
best=score;
}
}
ly=ret.first.first,lx=ret.first.second,ry=ret.second.first,rx=ret.second.second;
if(ly==ry)FOR(j,lx,rx+1) g[ly-1][j-1]^=1;
else FOR(i,ly,ry+1) g[i-1][lx-1]^=1;
return ret;
}
pair<pint,pint> calc2(int length){
pair<pint,pint> ret;
int best=-1000100010;
int slide=1;
rep(i,n)rep(j,n){
sumx[i][j+1]=sumx[i][j]+g[i][j];
sumy[i+1][j]=sumy[i][j]+g[i][j];
}
rep(i,n-length+1)rep(j,n-length+1)if(g[i][j]){
int score=sumx[i][j+length]-sumx[i][j];
if(best<score){
ret=make_pair(pint(i+1,j+1),pint(i+1,j+length));
best=score;
}
score=sumy[i+length][j]-sumy[i][j];
if(best<score){
ret=make_pair(pint(i+1,j+1),pint(i+length,j+1));
best=score;
}
}
FOR(i,n-length+1,n)rep(j,n-length+1){
if(g[i][j]){
int score=sumx[i][j+length]-sumx[i][j];
if(best<score){
ret=make_pair(pint(i+1,j+1),pint(i+1,j+length));
best=score;
}
}
if(g[j][i]){
int score=sumy[j+length][i]-sumy[j][i];
if(best<score){
ret=make_pair(pint(j+1,i+1),pint(j+length,i+1));
best=score;
}
}
}
ly=ret.first.first,lx=ret.first.second,ry=ret.second.first,rx=ret.second.second;
if(ly==ry)FOR(j,lx,rx+1) g[ly-1][j-1]^=1,sub+=g[ly-1][j-1]?-1:1;
else FOR(i,ly,ry+1) g[i-1][lx-1]^=1,sub+=g[i-1][lx-1]?-1:1;
return ret;
}
int get_score(){
int ret=0;
rep(i,n)ret+=count(g[i],g[i]+n,0);
return ret;
}
int main(){
Timer timer;
timer.reset();
cin>>n>>k;
rep(i,k) cin>>L[i];
//sort(L,L+k,greater<pint>());
rep(i,n) cin>>s[i];
rep(i,n)rep(j,n) g[i][j]|=s[i][j]-'0';
rep(i,k) ans[i]=calc(L[i]);
best=get_score();
memcpy(g2,g,sizeof(g));
int id,num=8;
vector<pint> cnd(num);
vector<pair<pint,pint> >tmp(num);
double t;
while(1){
t=timer.get();
if(t>timeLimit) break;
if(t>timeLimit-0.2) num=6;
sub=0;
rep(l,num){
while(id=xor128()%k,count(cnd.begin(),cnd.begin()+l,pint(L[id],id))||L[id]==1);
cnd[l]={L[id],id};
ly=ans[id].first.first,lx=ans[id].first.second,ry=ans[id].second.first,rx=ans[id].second.second;
if(ly==ry)FOR(j,lx,rx+1) g[ly-1][j-1]^=1,sub+=g[ly-1][j-1]?-1:1;
else FOR(i,ly,ry+1) g[i-1][lx-1]^=1,sub+=g[i-1][lx-1]?-1:1;
}
sort(cnd.begin(),cnd.begin()+num,greater<pint>());
rep(i,num){
tmp[i]=calc2(cnd[i].first);
}
if(sub>=0){
best+=sub;
memcpy(g2,g,sizeof(g));
rep(i,num)ans[cnd[i].second]=tmp[i];
}
else memcpy(g,g2,sizeof(g2));
}
//cerr<<best<<endl;
rep(i,k){
cout<<ans[i].first.first<<" "<<ans[i].first.second<<" "<<ans[i].second.first<<" "<<ans[i].second.second<<endl;
}
return 0;
}