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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#80585 | #5173. 染色 | LWLAymh | 0 | 558ms | 52244kb | C++14 | 3.1kb | 2023-02-24 12:03:54 | 2023-02-24 12:03:55 |
Judging History
answer
#include<algorithm>
#include<cstring>
#include<cstdio>
#include<queue>
#define ll long long
#define qwq 2000007
inline int read(){
char c=getchar();
int x=0;int flag=0;
for(;c<'0'||c>'9';c=getchar())flag|=(c=='-');
for(;c<='9'&&c>='0';c=getchar())x=(x<<1)+(x<<3)+c-'0';
if(flag)return -x;
return x;
}
int n,q;
int a[qwq];
int flag1[qwq];
struct Line{
int l,r;
}b[qwq],c[qwq];
int cntb,cntc;
bool cmpLine(Line x,Line y){
if(x.r!=y.r)return x.r<y.r;
return x.l>y.l;
}
int L[qwq];
inline void add_line(int l,int r){
// printf("add[%d,%d]\n",l,r);
++cntb;
b[cntb].l=l;b[cntb].r=r;
return ;
}
struct ASK{
int l,r;
int num;
}ask[qwq];
bool cmpASK(ASK x,ASK y){
return x.l<y.l;
}
int ans[qwq];
int T[qwq];
#define pii std::pair<int,int>
#define mp std::make_pair
std::priority_queue<pii>p_que;
int fa[qwq];
int get_f(int x){
if(fa[x]==x)return x;
return fa[x]=get_f(fa[x]);
}
struct tree{
int son[2];
int dis;
int val;
int tag;
}tr[qwq];
int merge(int x,int y){
if(!x)return y;
if(!y)return x;
if(tr[x].val<tr[y].val)std::swap(x,y);
if(tr[x].val==tr[y].val&&y>x)std::swap(x,y);
tr[y].son[1]=merge(x,tr[y].son[1]);
if(tr[tr[y].son[1]].dis>tr[tr[y].son[0]].dis)std::swap(tr[y].son[0],tr[y].son[1]);
tr[y].dis=tr[tr[y].son[1]].dis+1;
return y;
}
inline int delet(int x){
x=get_f(x);
return fa[x]=fa[tr[x].son[0]]=fa[tr[x].son[1]]=merge(tr[x].son[0],tr[x].son[1]);
}
int main(){
scanf("%d%d",&n,&q);
for(int i=1;i<=n;++i){
scanf("%d",&a[i]);
}
int lasl=1,lasr=1;
for(int i=2;i<=n;++i){
if(a[i]==a[lasr])++lasr;
else {
add_line(lasl,lasr);
lasl=i;lasr=i;
}
}
add_line(lasl,lasr);
for(int i=1;i<=cntb;++i){
L[i]=b[i].l;
if(b[i].l==b[i].r){
flag1[b[i].l]=1;
}
}
for(int i=1;i<=n;++i)flag1[i]+=flag1[i-1];
for(int i=1;i<=cntb;++i){
if(T[a[b[i].l]]){
int l=T[a[b[i].l]];
int r=i;
if(flag1[b[r].l-1]-flag1[b[l].r]!=b[r].l-1-b[l].r)continue;
++cntc;
c[cntc].l=l,c[cntc].r=r;
// printf("[%d,%d]\n",l,r);
}
T[a[b[i].l]]=i;
}
std::sort(c+1,c+cntc+1,cmpLine);
for(int i=1;i<=q;++i){
int x=read(),y=read();
if(x>y)std::swap(x,y);
if(x==y){
printf("%d\n",0);
--q;--i;
continue;
}
int l=std::upper_bound(L+1,L+cntb+1,x)-L-1;
int r=std::upper_bound(L+1,L+cntb+1,y)-L-1;
ans[i]=r-l+y-x;
ask[i].l=l;ask[i].r=r;ask[i].num=i;
int R=l,cnt=0;
// for(int j=1;j<=cntc;++j){
// if(c[j].r>r)continue;
// if(c[j].l>=R){
// R=c[j].r;++cnt;
// }
// }
printf("%d\n",ans[i]-cnt);
}
// std::sort(ask+1,ask+q+1,cmpASK);
// int lasask=1,lasc=1;
// for(int r=1;r<=cntb;++r){
// for(;lasask<=q&&ask[lasask].l==r;++lasask){
// p_que.push(mp(-ask[lasask].l,lasask));
// tr[lasask].val=ask[lasask].r;
// fa[lasask]=lasask;
// }
// for(;lasc<=cntc&&c[lasc].r==r;++lasc){
// while(!p_que.empty()){
// int x=p_que.top().second,R=-p_que.top().first;
// if(ask[lasask].r<r){
// int x=delet(lasask);
// if(x!=0)p_que.push(mp(-ask[x].r,x));
// continue;
// }
// }
// }
// }
return 0;
}
Details
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Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 3ms
memory: 17316kb
input:
10000 100 84 85 52 2 78 53 20 21 23 76 37 44 18 5 37 8 81 65 46 58 69 1 69 37 53 46 37 35 35 89 1 77 35 6 46 59 89 46 25 55 50 38 61 67 44 23 29 24 46 4 42 15 34 77 20 34 83 79 12 50 69 26 38 14 9 66 80 72 22 26 9 68 35 38 19 84 92 30 83 62 100 71 81 60 7 37 64 50 33 60 86 75 45 78 32 53 3 48 87 60 ...
output:
3813 4757 6211 8703 757 7287 190 7599 513 1187 264 2334 13730 6499 473 7801 2236 10893 1858 2772 4986 303 6227 651 6921 6422 11848 2818 3285 8138 18463 531 5696 18518 9941 6391 5191 15142 692 482 16213 13157 9216 8135 11404 6865 6650 5223 9455 8858 2263 10699 2788 13028 5144 2230 9142 1980 6720 2943...
result:
wrong answer 1st words differ - expected: '3668', found: '3813'
Subtask #2:
score: 0
Wrong Answer
Test #7:
score: 0
Wrong Answer
time: 45ms
memory: 23464kb
input:
100000 100000 3 2 3 3 3 3 2 3 2 1 3 1 1 1 3 2 1 3 1 2 2 1 3 1 2 2 1 1 1 3 2 1 3 3 3 3 1 1 1 2 3 3 2 1 1 1 3 1 3 1 3 2 1 3 2 3 3 2 3 3 2 3 3 3 3 3 2 3 2 3 1 3 3 3 3 3 3 3 1 2 3 3 1 3 1 1 2 2 3 1 1 2 3 2 3 1 3 2 1 3 2 3 2 1 1 3 3 1 3 1 2 2 2 3 2 3 2 3 2 1 1 3 1 3 2 2 3 3 3 1 2 2 3 3 2 1 3 1 2 2 2 3 2 ...
output:
128352 150899 62213 7320 10434 88757 106497 33161 44094 126519 75568 8160 74877 48480 50589 55889 12574 122114 81271 12099 5357 98811 53111 85916 30888 12412 13903 67422 21123 62474 13153 8882 6256 43916 76308 66138 19211 79437 79788 60826 58789 630 20953 135951 4551 49084 70881 38498 11191 28347 37...
result:
wrong answer 1st words differ - expected: '113194', found: '128352'
Subtask #3:
score: 0
Wrong Answer
Test #15:
score: 0
Wrong Answer
time: 4ms
memory: 17320kb
input:
5000 5000 256 63 197 36 75 66 33 72 27 75 66 248 29 166 209 252 141 95 84 226 147 249 116 94 192 256 199 273 182 166 116 274 27 211 154 144 283 23 53 110 215 11 164 284 161 221 251 96 43 47 18 115 12 51 156 61 116 209 93 98 47 165 174 106 83 67 184 75 12 290 183 197 112 240 67 56 215 148 104 5 141 2...
output:
1353 2759 1779 2667 4867 5109 3024 1359 901 5182 7991 4966 955 944 823 7437 7833 5450 3897 3306 4575 1609 2594 40 925 309 4455 3972 3893 5862 4719 1692 445 1449 3701 5372 580 122 2089 7783 9318 2096 3188 3761 2950 431 741 4102 183 3303 1473 1637 7283 3072 6088 8262 1579 3887 370 4573 3369 1783 836 2...
result:
wrong answer 1st words differ - expected: '1322', found: '1353'
Subtask #4:
score: 0
Wrong Answer
Test #23:
score: 0
Wrong Answer
time: 558ms
memory: 52244kb
input:
1000000 1000000 1105 3246 1880 3554 818 2331 2576 4140 149 4562 3498 3536 3400 4788 4363 4742 1216 4218 4032 1701 1489 4889 1761 3022 3145 4945 3067 4304 5016 4624 1612 13 1335 3613 1086 2210 386 3464 1156 3352 4341 5006 3465 3900 622 654 1826 2983 1250 4164 3335 4308 2995 1982 1347 4335 2535 5054 4...
output:
1270837 310328 764303 79896 161234 580078 993703 1725609 1352531 216386 619391 549268 1393595 322493 1100382 52572 277656 228838 2492 148572 145586 670804 25565 225019 185373 1453210 1675547 550683 147235 974688 1112614 238859 821830 113118 85279 1195295 318431 721953 170463 562948 772053 414516 736...
result:
wrong answer 1st words differ - expected: '1263815', found: '1270837'