답안 #32238 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
32238	2017-10-05T02:55:30 Z	dqhungdl	Boat (APIO16_boat)	C++14	31 / 100	216 ms	22328 KB

boat

#include <bits/stdc++.h>
using namespace std;

typedef pair<int,int> ii;
const int mod=1e9+7;
ii Seg[505];
int n,Count=0,res=0,a[505],b[505],f[505],c[1000005],tree[1000005];
int64_t sum=0;
vector<ii> V;

void Sub1()
{
    for(int i=1; i<=n; i++)
    {
        f[i]=1;
        for(int j=1; j<i; j++)
            if(a[j]<a[i])
                f[i]=(f[i]+f[j])%mod;
        res=(res+f[i])%mod;
    }
    cout<<res;
}

void Update(int idx,int data)
{
    while(idx<=sum)
    {
        tree[idx]=(tree[idx]+data)%mod;
        idx+=idx&-idx;
    }
}

int Query(int idx)
{
    int rs=0;
    while(idx>0)
    {
        rs=(rs+tree[idx])%mod;
        idx-=idx&-idx;
    }
    return rs;
}

void Sub2()
{
    int Count=0;
    for(int i=1; i<=n; i++)
        for(int j=b[i];j>=a[i];j--)
            V.push_back(ii(j,++Count));
    sort(V.begin(),V.end());
    c[V[0].second]=1;
    Count=1;
    for(int i=1;i<V.size();i++)
        if(V[i].first>V[i-1].first)
            c[V[i].second]=++Count;
        else
            c[V[i].second]=Count;
    for(int i=1; i<=sum; i++)
    {
        int tmp=(Query(c[i]-1)+1)%mod;
        Update(c[i],tmp);
        res=(res+tmp)%mod;
    }
    cout<<res;
}

int main()
{
    ios_base::sync_with_stdio(false);
    //freopen("BOAT.INP","r",stdin);
    cin>>n;
    bool check=false;
    for(int i=1; i<=n; i++)
    {
        cin>>a[i]>>b[i];
        if(a[i]!=b[i])
            check=true;
        sum+=b[i]-a[i]+1;
    }
    if(check==false)
        Sub1();
    else if(sum<=1e6)
        Sub2();
}

Compilation message

boat.cpp: In function 'void Sub2()':
boat.cpp:53:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<V.size();i++)
                  ^

Subtask #1
9.0 / 9.0

#	결과	메모리	Grader output
1	Correct	10000 KB	Output is correct
2	Correct	10000 KB	Output is correct
3	Correct	10000 KB	Output is correct
4	Correct	10000 KB	Output is correct
5	Correct	10000 KB	Output is correct
6	Correct	10000 KB	Output is correct
7	Correct	10000 KB	Output is correct
8	Correct	10000 KB	Output is correct
9	Correct	10000 KB	Output is correct
10	Correct	10000 KB	Output is correct
11	Correct	10000 KB	Output is correct
12	Correct	10000 KB	Output is correct
13	Correct	10000 KB	Output is correct
14	Correct	10000 KB	Output is correct
15	Correct	10000 KB	Output is correct
16	Correct	10000 KB	Output is correct
17	Correct	10000 KB	Output is correct
18	Correct	10000 KB	Output is correct
19	Correct	10000 KB	Output is correct
20	Correct	10000 KB	Output is correct

Subtask #2
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	10000 KB	Output is correct
2	Correct	0 ms	10000 KB	Output is correct
3	Correct	0 ms	10000 KB	Output is correct
4	Correct	0 ms	10000 KB	Output is correct
5	Correct	0 ms	10000 KB	Output is correct
6	Correct	0 ms	10000 KB	Output is correct
7	Correct	0 ms	10000 KB	Output is correct
8	Correct	0 ms	10000 KB	Output is correct
9	Correct	0 ms	10000 KB	Output is correct
10	Correct	0 ms	10000 KB	Output is correct
11	Correct	0 ms	10000 KB	Output is correct
12	Correct	0 ms	10000 KB	Output is correct
13	Correct	0 ms	10000 KB	Output is correct
14	Correct	0 ms	10000 KB	Output is correct
15	Correct	0 ms	10000 KB	Output is correct
16	Correct	0 ms	10000 KB	Output is correct
17	Correct	0 ms	10000 KB	Output is correct
18	Correct	0 ms	10000 KB	Output is correct
19	Correct	0 ms	10000 KB	Output is correct
20	Correct	0 ms	10000 KB	Output is correct
21	Correct	196 ms	22328 KB	Output is correct
22	Correct	196 ms	22328 KB	Output is correct
23	Correct	186 ms	22328 KB	Output is correct
24	Correct	189 ms	22328 KB	Output is correct
25	Correct	199 ms	22328 KB	Output is correct
26	Correct	209 ms	22328 KB	Output is correct
27	Correct	209 ms	22328 KB	Output is correct
28	Correct	209 ms	22328 KB	Output is correct
29	Correct	216 ms	22328 KB	Output is correct
30	Correct	209 ms	22328 KB	Output is correct
31	Correct	183 ms	22328 KB	Output is correct
32	Correct	186 ms	22328 KB	Output is correct
33	Correct	179 ms	22328 KB	Output is correct
34	Correct	193 ms	22328 KB	Output is correct
35	Correct	156 ms	22328 KB	Output is correct
36	Correct	163 ms	22328 KB	Output is correct
37	Correct	159 ms	22328 KB	Output is correct
38	Correct	149 ms	22328 KB	Output is correct

Subtask #3
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	0 ms	10000 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 42.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	10000 KB	Output is correct
2	Correct	0 ms	10000 KB	Output is correct
3	Correct	0 ms	10000 KB	Output is correct
4	Correct	0 ms	10000 KB	Output is correct
5	Correct	0 ms	10000 KB	Output is correct
6	Correct	0 ms	10000 KB	Output is correct
7	Correct	0 ms	10000 KB	Output is correct
8	Correct	0 ms	10000 KB	Output is correct
9	Correct	0 ms	10000 KB	Output is correct
10	Correct	0 ms	10000 KB	Output is correct
11	Correct	0 ms	10000 KB	Output is correct
12	Correct	0 ms	10000 KB	Output is correct
13	Correct	0 ms	10000 KB	Output is correct
14	Correct	0 ms	10000 KB	Output is correct
15	Correct	0 ms	10000 KB	Output is correct
16	Correct	0 ms	10000 KB	Output is correct
17	Correct	0 ms	10000 KB	Output is correct
18	Correct	0 ms	10000 KB	Output is correct
19	Correct	0 ms	10000 KB	Output is correct
20	Correct	0 ms	10000 KB	Output is correct
21	Correct	196 ms	22328 KB	Output is correct
22	Correct	196 ms	22328 KB	Output is correct
23	Correct	186 ms	22328 KB	Output is correct
24	Correct	189 ms	22328 KB	Output is correct
25	Correct	199 ms	22328 KB	Output is correct
26	Correct	209 ms	22328 KB	Output is correct
27	Correct	209 ms	22328 KB	Output is correct
28	Correct	209 ms	22328 KB	Output is correct
29	Correct	216 ms	22328 KB	Output is correct
30	Correct	209 ms	22328 KB	Output is correct
31	Correct	183 ms	22328 KB	Output is correct
32	Correct	186 ms	22328 KB	Output is correct
33	Correct	179 ms	22328 KB	Output is correct
34	Correct	193 ms	22328 KB	Output is correct
35	Correct	156 ms	22328 KB	Output is correct
36	Correct	163 ms	22328 KB	Output is correct
37	Correct	159 ms	22328 KB	Output is correct
38	Correct	149 ms	22328 KB	Output is correct
39	Incorrect	0 ms	10000 KB	Output isn't correct
40	Halted	0 ms	0 KB	-

답안 #32238

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 22.0 / 22.0

Subtask #3 0 / 27.0

Subtask #4 0 / 42.0

Subtask #1
9.0 / 9.0

Subtask #2
22.0 / 22.0

Subtask #3
0 / 27.0

Subtask #4
0 / 42.0