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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#200439 | #7523. Partially Free Meal | Diwanul | WA | 370ms | 128264kb | C++14 | 4.2kb | 2023-10-04 16:59:21 | 2023-10-04 16:59:21 |
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(y==118&&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]);
if(n>10)
printf("%lld\n",pt.Query(rt[117],1,tl,1));
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。
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 5888kb
input:
3 2 5 4 3 3 7
output:
7 11 16
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 370ms
memory: 128264kb
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:
928337481 50 118 121 2 126446521 930400886 133193638 1318594 100567691 176020191 638501626 1100983061 918484219 1918481277 2918478335 3918475393 4918472451 5918469509 6918466567 7918463625 8918460683 9918457741 10918454799 11918451857 12918448915 13918445973 14918443031 15918440089 16918437147 17918...
result:
wrong answer 1st lines differ - expected: '1318594', found: '928337481'