oj.uz

답안 #6852

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
6852 2014-07-08T08:15:14 Z gs12117 역사적 조사 (JOI14_historical) C++
5 / 100
 0 ms 5780 KB 
#include<stdio.h>
#include<algorithm>
#define BSIZ 300
int n,q;
int x[100100];
struct sn{
	int loc,val;
	bool operator<(const sn&r)const{
		return val<r.val;
	}
};
sn st[100100];
int a[100100];
int cpr[100100];
int qry[100100][2];
long long int ans[100100];
long long int sv[100100];
int cprn;
long long int mans;
int mocc[100100];
int c[310];
int cn;
int main(){
	int i,j,k,p,bf,df;
	scanf("%d%d",&n,&q);
	for(i=0;i<n;i++){
		scanf("%d",&x[i]);
		st[i].val=x[i];
		st[i].loc=i;
	}
	std::sort(st,st+n);
	for(i=0;i<n;i++){
		a[st[i].loc]=cprn;
		if(i==n-1||st[i].val!=st[i+1].val){
			cpr[cprn]=st[i].val;
			cprn++;
		}
	}
	for(i=0;i<q;i++){
		scanf("%d%d",&qry[i][0],&qry[i][1]);
		qry[i][0]--;
		qry[i][1]--;
		st[i].loc=i;
		st[i].val=qry[i][1];
	}
	std::sort(st,st+q);
	for(i=0;i<=(n-1)/BSIZ;i++){
		cn=0;
		for(j=0;j<BSIZ&&j+i*BSIZ<n;j++){
			if(mocc[a[j]]==1)continue;
			mocc[a[j]]=1;
			c[cn]=a[j];
			cn++;
		}
		mans=0;
		bf=i*BSIZ;
		df=i*BSIZ;
		for(j=0;j<q;j++){
			p=st[j].loc;
			if(qry[p][0]/BSIZ==i){
				for(k=bf;k<=qry[p][1];k++){
					sv[a[k]]+=cpr[a[k]];
					if(mocc[a[k]]==0&&mans<sv[a[k]])mans=sv[a[k]];
				}
				bf=qry[p][1]+1;
				if(df<qry[p][0]){
					for(k=df;k<qry[p][0];k++){
						sv[a[k]]-=cpr[a[k]];
					}
				}
				else{
					for(k=qry[p][0];k<df;k++){
						sv[a[k]]+=cpr[a[k]];
					}
				}
				df=qry[p][0];
				ans[p]=mans;
				for(k=0;k<cn;k++){
					if(sv[c[k]]>ans[p])ans[p]=sv[c[k]];
				}
			}
		}
		for(k=0;k<cprn;k++){
			if(sv[k]==0)continue;
			sv[k]=0;
		}
		for(i=0;i<cn;i++){
			mocc[c[i]]=0;
		}
	}
	for(i=0;i<q;i++){
		printf("%lld\n",ans[i]);
	}
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 5780 KB Output is correct
2 Correct 0 ms 5780 KB Output is correct
3 Correct 0 ms 5780 KB Output is correct
4 Correct 0 ms 5780 KB Output is correct
5 Correct 0 ms 5780 KB Output is correct
6 Correct 0 ms 5780 KB Output is correct
7 Correct 0 ms 5780 KB Output is correct
8 Correct 0 ms 5780 KB Output is correct
9 Correct 0 ms 5780 KB Output is correct
10 Correct 0 ms 5780 KB Output is correct
11 Correct 0 ms 5780 KB Output is correct
12 Correct 0 ms 5780 KB Output is correct
13 Correct 0 ms 5780 KB Output is correct
14 Correct 0 ms 5780 KB Output is correct
15 Correct 0 ms 5780 KB Output is correct

Subtask #2
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 5780 KB Output is correct
2 Incorrect 0 ms 5780 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 5780 KB Output is correct
2 Correct 0 ms 5780 KB Output is correct
3 Incorrect 0 ms 5780 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 5780 KB Output isn't correct
2 Halted 0 ms 0 KB -