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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#200407 | #7523. Partially Free Meal | Diwanul | WA | 400ms | 126872kb | C++14 | 4.1kb | 2023-10-04 16:53:09 | 2023-10-04 16:53:09 |
Judging History
answer
//prepare for coding{{{
//preparaton{{{
#include<bits/stdc++.h>
#define RELEASE
#ifdef RELEASE
#define DB(...) ;
#else
//#define FILE
#ifdef FILE
#define DB(...) fprintf(stderr,__VA_ARGS__)
#else
#define DB printf
#endif
#endif
//#define MOD_OPERATOR
//#define CMP_OPERATOR
//#define GRP_OPERATOR
#define int LL
//}}}
//constants{{{
typedef long long LL;
const int N=200000,LGN=20;
const LL INF=0x3f3f3f3f3f3f3f3f;
//}}}
//std{{{
using namespace std;
//}}}
//input and output{{{
inline int Read(){
char c=getchar();
int res=0;
bool b=0;
while(c>'9'||c<'0')
b=(c=='-'),c=getchar();
while(c>='0'&&c<='9')
res=(res<<3)+(res<<1)+c-'0',c=getchar();
return b?-res:res;
}
//}}}
//other small functions{{{
//}}}
//variables{{{
int n;
int lsh[N+10],tl;
struct ITEM{
int a,b;
inline bool operator<(const ITEM &x)const{
return b<x.b;
}
inline void Init(){
lsh[++tl]=a=Read();
b=Read();
}
}a[N+10];
//}}}
//modulo operators{{{
#ifdef MOD_OPERATOR
const int MOD=998244353;
inline int Add(int a,int b){
return a+b<MOD?a+b:a+b-MOD;
}
inline int MAdd(int &x,int y){
return (x+=y)<MOD?x:x-=MOD;
}
inline int Mul(int a,int b){
return 1ll*a*b%MOD;
}
inline int MMul(int &x,int y){
return x=1ll*x*y%MOD;
}
inline int Pow(int x,int b=MOD-2){
int res=1;
while(b){
if(b&1)
MMul(res,x);
MMul(x,x);
b>>=1;
}
return res;
}
#endif
//}}}
//compare operators{{{
inline int Max(int a,int b){
return a<b?b:a;
}
inline int CMX(int &x,int y){
return x<y?x=y:x;
}
inline int Min(int a,int b){
return a>b?b:a;
}
inline int CMN(int &x,int y){
return x>y?x=y:x;
}
//}}}
//graph operators{{{
#ifdef GRP_OPERATOR
int te=1,head[N+10];
int s,t;
struct EDGE{
int n,t;
}e[N*2+10];
inline void Adde(int u,int v){
e[++te].n=head[u];
e[te].t=v;
head[u]=te;
e[++te].n=head[v];
e[te].t=u;
head[v]=te;
}
#endif
//}}}
//}}}
//persistent segment tree{{{
int rt[N+10];
struct PST{
int tn;
struct NODE{
int sm,sz,ls,rs;
}nd[N*LGN];
#define LS(u) nd[u].ls
#define RS(u) nd[u].rs
#define SM(u) nd[u].sm
#define SZ(u) nd[u].sz
inline void Modify(int old,int &u,int l,int r,int x,int y){
u=++tn;
SM(u)=SM(old)+y;
SZ(u)=SZ(old)+1;
if(l==r)
return;
int mid=(l+r)>>1;
if(x>mid)
Modify(RS(old),RS(u),mid+1,r,x,y);
else
Modify(LS(old),LS(u),l,mid,x,y);
}
inline int Query(int u,int l,int r,int x){
if(l==r)
return x*lsh[l];
int mid=(l+r)>>1;
if(x<SZ(LS(u)))
return Query(LS(u),l,mid,x);
else
return SM(LS(u))+Query(RS(u),mid+1,r,x-SZ(LS(u)));
}
}pt;
//}}}
//solve{{{
int st[N+10],tst;
inline int Calc(int x,int y){
return y>x?INF:pt.Query(rt[x-1],1,n,y-1)+lsh[a[x].a]+a[x].b;
}
inline bool Check(int x,int y,int z){
int l=1,r=z-1,ans=z;
while(l<=r){
int mid=(l+r)>>1;
if(Calc(z,mid)<=Calc(y,mid))
r=(ans=mid)-1;
else
l=mid+1;
}
if(Calc(x,ans)<=Calc(z,ans))
printf("%lld %lld %lld %lld %lld %lld %lld\n",x,y,z,ans,Calc(x,ans),Calc(y,ans),Calc(z,ans));
return Calc(x,ans)<=Calc(z,ans);
}
//}}}
//main{{{
signed main(){
#ifdef FILE
freopen(".in","r",stdin);
freopen(".out","w",stdout);
#endif
n=Read();
for(int i=1;i<=n;++i)
a[i].Init();
sort(lsh+1,lsh+1+tl);
tl=unique(lsh+1,lsh+1+tl)-lsh-1;
for(int i=1;i<=n;++i)
a[i].a=lower_bound(lsh+1,lsh+1+tl,a[i].a)-lsh;
sort(a+1,a+1+n);
for(int i=1;i<=n;++i)
pt.Modify(rt[i-1],rt[i],1,tl,a[i].a,lsh[a[i].a]);
for(int i=1;i<=n;++i){
while((tst&&lsh[a[st[tst]].a]+a[st[tst]].b>lsh[a[i].a]+a[i].b)||(tst>1&&Check(st[tst-1],st[tst],i)))
--tst;
st[++tst]=i;
}
for(int i=1,j=1;i<=tst&&j<=n;++i){
int di=st[i],ni=st[i+1];
/*
if(n==200000){
printf("%lld %lld\n",di,ni);
printf("%lld %lld %lld\n",j,lsh[a[di].a],a[di].b);
if(di==873)
for(int t=1;t<=5;++t)
printf("s%lld\n",sgt1.Query(1,1,n,t)-sgt1.Query(1,1,n,t-1));
}
*/
while(j<=di&&(di==n||Calc(di,j)<Calc(ni,j)))
printf("%lld\n",Calc(di,j)),++j;
}
return 0;
}
//}}}
//《象》曰:泽灭木,大过。君子以独立不惧,遁世无闷。
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5948kb
input:
3 2 5 4 3 3 7
output:
7 11 16
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 400ms
memory: 126872kb
input:
200000 466436993 804989151 660995237 756645598 432103296 703610564 6889895 53276988 873617076 822481192 532911431 126844295 623111499 456772252 937464699 762157133 708503076 786039753 78556972 5436013 582960979 398984169 786333369 325119902 930705057 615928139 924915828 506145001 164984329 208212435...
output:
8 11 12 3 155221104 1509858705 1071997782 7 13 14 2 13364617 640646949 217684065 14 16 17 3 1217681123 2080124820 2072785311 14 19 20 3 1217681123 1986630207 1575357601 7 14 21 4 2013358733 2217678181 2163218608 7 21 22 5 3013355791 3163215666 3109004291 7 26 27 2 13364617 696844848 602521334 7 27 2...
result:
wrong answer 1st lines differ - expected: '1318594', found: '8 11 12 3 155221104 1509858705 1071997782'