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Submission #994249

# Submission time Handle Problem Language Result Execution time Memory
994249 2024-06-07T09:50:29 Z modwwe Boat (APIO16_boat) C++17
100 / 100
 273 ms 8316 KB 
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int mod2=1e9+7;
const int  mod1=998244353;
struct icd
{
    int a,b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
struct ie
{
    int a,b,c, d,e,f;
 
};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int  i,s10,s12;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
   // fin(task),fou(task);
#endif
    NHP
    /// cin>>s1;
    ///modwwe
    phongbeo();
}
vector<int> v;
int c[501][1001];
ib a[501];
int dp[501][1001];
int modI(int a, int m) {
	return a<=1?a:(1-modI(m%a, a)*m)/a+m;
}
void phongbeo()
{
    cin>>n;
    for(int i=1; i<=n; i++)
        cin>>a[i].a>>a[i].b,
            v.pb(a[i].a-1),v.pb(a[i].b);
    sort(v.begin(), v.end());
    v.resize(unique(v.begin(), v.end())-v.begin());
/// dp[0][i]=1;
    for(int i=1; i<v.size(); ++i) {
		c[1][i]=v[i]-v[i-1];
		for(int j=2; j<=n; ++j)
			c[j][i]=c[j-1][i]*(v[i]-v[i-1]+j-1)%mod2*modI(j, mod2)%mod2;
	}
    for(int i=0; i<v.size(); i++)
        dp[0][i]=1;
 
/// dua het tu v[i-1] ->v[i]
    for(int i=1; i<v.size(); i++)
    {
            for(int j=1; j<=n; j++)
            {
                dp[j][i]=dp[j][i-1];
                s2=1;
                if(a[j].a<=v[i-1]+1&&a[j].b>=v[i])
                {
                    for(int z=j-1; z>=0; --z)
                    {
 
                        dp[j][i]=(dp[j][i]+(dp[z][i-1]*c[s2][i])%mod2)%mod2;
                        if(a[z].a<=v[i-1]+1&&a[z].b>=v[i])
                            s2++;
 
                    }
                }
            }
    }
 
    s3=0;
     for(int j=1;j<=n;j++){
        s3=s3+dp[j][v.size()-1];
     }
     cout<<s3%mod2;
}

Compilation message

boat.cpp:45:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   45 | main()
      | ^~~~
boat.cpp: In function 'void phongbeo()':
boat.cpp:71:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for(int i=1; i<v.size(); ++i) {
      |                  ~^~~~~~~~~
boat.cpp:76:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |     for(int i=0; i<v.size(); i++)
      |                  ~^~~~~~~~~
boat.cpp:80:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |     for(int i=1; i<v.size(); i++)
      |                  ~^~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 8284 KB Output is correct
2 Correct 16 ms 8284 KB Output is correct
3 Correct 18 ms 8284 KB Output is correct
4 Correct 17 ms 8148 KB Output is correct
5 Correct 15 ms 8144 KB Output is correct
6 Correct 17 ms 8284 KB Output is correct
7 Correct 16 ms 8216 KB Output is correct
8 Correct 16 ms 8316 KB Output is correct
9 Correct 15 ms 8284 KB Output is correct
10 Correct 16 ms 8152 KB Output is correct
11 Correct 16 ms 8156 KB Output is correct
12 Correct 16 ms 8160 KB Output is correct
13 Correct 17 ms 8256 KB Output is correct
14 Correct 15 ms 8280 KB Output is correct
15 Correct 16 ms 8284 KB Output is correct
16 Correct 5 ms 7004 KB Output is correct
17 Correct 6 ms 7188 KB Output is correct
18 Correct 4 ms 7004 KB Output is correct
19 Correct 5 ms 7004 KB Output is correct
20 Correct 4 ms 7004 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 8284 KB Output is correct
2 Correct 16 ms 8284 KB Output is correct
3 Correct 18 ms 8284 KB Output is correct
4 Correct 17 ms 8148 KB Output is correct
5 Correct 15 ms 8144 KB Output is correct
6 Correct 17 ms 8284 KB Output is correct
7 Correct 16 ms 8216 KB Output is correct
8 Correct 16 ms 8316 KB Output is correct
9 Correct 15 ms 8284 KB Output is correct
10 Correct 16 ms 8152 KB Output is correct
11 Correct 16 ms 8156 KB Output is correct
12 Correct 16 ms 8160 KB Output is correct
13 Correct 17 ms 8256 KB Output is correct
14 Correct 15 ms 8280 KB Output is correct
15 Correct 16 ms 8284 KB Output is correct
16 Correct 5 ms 7004 KB Output is correct
17 Correct 6 ms 7188 KB Output is correct
18 Correct 4 ms 7004 KB Output is correct
19 Correct 5 ms 7004 KB Output is correct
20 Correct 4 ms 7004 KB Output is correct
21 Correct 178 ms 8276 KB Output is correct
22 Correct 172 ms 8276 KB Output is correct
23 Correct 161 ms 8276 KB Output is correct
24 Correct 170 ms 8296 KB Output is correct
25 Correct 169 ms 8276 KB Output is correct
26 Correct 235 ms 8276 KB Output is correct
27 Correct 246 ms 8268 KB Output is correct
28 Correct 235 ms 8276 KB Output is correct
29 Correct 238 ms 8304 KB Output is correct
30 Correct 17 ms 8280 KB Output is correct
31 Correct 17 ms 8284 KB Output is correct
32 Correct 17 ms 8180 KB Output is correct
33 Correct 17 ms 8284 KB Output is correct
34 Correct 16 ms 8312 KB Output is correct
35 Correct 16 ms 8276 KB Output is correct
36 Correct 17 ms 8284 KB Output is correct
37 Correct 17 ms 8284 KB Output is correct
38 Correct 18 ms 8284 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4956 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 4956 KB Output is correct
6 Correct 4 ms 4956 KB Output is correct
7 Correct 3 ms 5092 KB Output is correct
8 Correct 3 ms 4956 KB Output is correct
9 Correct 4 ms 4952 KB Output is correct
10 Correct 3 ms 4956 KB Output is correct
11 Correct 2 ms 4956 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 4916 KB Output is correct
14 Correct 2 ms 4996 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 2 ms 4956 KB Output is correct
18 Correct 2 ms 4956 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct

Subtask #4
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 8284 KB Output is correct
2 Correct 16 ms 8284 KB Output is correct
3 Correct 18 ms 8284 KB Output is correct
4 Correct 17 ms 8148 KB Output is correct
5 Correct 15 ms 8144 KB Output is correct
6 Correct 17 ms 8284 KB Output is correct
7 Correct 16 ms 8216 KB Output is correct
8 Correct 16 ms 8316 KB Output is correct
9 Correct 15 ms 8284 KB Output is correct
10 Correct 16 ms 8152 KB Output is correct
11 Correct 16 ms 8156 KB Output is correct
12 Correct 16 ms 8160 KB Output is correct
13 Correct 17 ms 8256 KB Output is correct
14 Correct 15 ms 8280 KB Output is correct
15 Correct 16 ms 8284 KB Output is correct
16 Correct 5 ms 7004 KB Output is correct
17 Correct 6 ms 7188 KB Output is correct
18 Correct 4 ms 7004 KB Output is correct
19 Correct 5 ms 7004 KB Output is correct
20 Correct 4 ms 7004 KB Output is correct
21 Correct 178 ms 8276 KB Output is correct
22 Correct 172 ms 8276 KB Output is correct
23 Correct 161 ms 8276 KB Output is correct
24 Correct 170 ms 8296 KB Output is correct
25 Correct 169 ms 8276 KB Output is correct
26 Correct 235 ms 8276 KB Output is correct
27 Correct 246 ms 8268 KB Output is correct
28 Correct 235 ms 8276 KB Output is correct
29 Correct 238 ms 8304 KB Output is correct
30 Correct 17 ms 8280 KB Output is correct
31 Correct 17 ms 8284 KB Output is correct
32 Correct 17 ms 8180 KB Output is correct
33 Correct 17 ms 8284 KB Output is correct
34 Correct 16 ms 8312 KB Output is correct
35 Correct 16 ms 8276 KB Output is correct
36 Correct 17 ms 8284 KB Output is correct
37 Correct 17 ms 8284 KB Output is correct
38 Correct 18 ms 8284 KB Output is correct
39 Correct 3 ms 4956 KB Output is correct
40 Correct 2 ms 4956 KB Output is correct
41 Correct 3 ms 4956 KB Output is correct
42 Correct 2 ms 4956 KB Output is correct
43 Correct 3 ms 4956 KB Output is correct
44 Correct 4 ms 4956 KB Output is correct
45 Correct 3 ms 5092 KB Output is correct
46 Correct 3 ms 4956 KB Output is correct
47 Correct 4 ms 4952 KB Output is correct
48 Correct 3 ms 4956 KB Output is correct
49 Correct 2 ms 4956 KB Output is correct
50 Correct 2 ms 4956 KB Output is correct
51 Correct 2 ms 4916 KB Output is correct
52 Correct 2 ms 4996 KB Output is correct
53 Correct 2 ms 4956 KB Output is correct
54 Correct 2 ms 4956 KB Output is correct
55 Correct 2 ms 4956 KB Output is correct
56 Correct 2 ms 4956 KB Output is correct
57 Correct 2 ms 4956 KB Output is correct
58 Correct 2 ms 4956 KB Output is correct
59 Correct 192 ms 8276 KB Output is correct
60 Correct 183 ms 8252 KB Output is correct
61 Correct 178 ms 8264 KB Output is correct
62 Correct 190 ms 8276 KB Output is correct
63 Correct 190 ms 8240 KB Output is correct
64 Correct 268 ms 8276 KB Output is correct
65 Correct 272 ms 8276 KB Output is correct
66 Correct 273 ms 8272 KB Output is correct
67 Correct 271 ms 8276 KB Output is correct
68 Correct 270 ms 8276 KB Output is correct
69 Correct 149 ms 8276 KB Output is correct
70 Correct 145 ms 8276 KB Output is correct
71 Correct 149 ms 8276 KB Output is correct
72 Correct 151 ms 8276 KB Output is correct
73 Correct 158 ms 8276 KB Output is correct
74 Correct 37 ms 6996 KB Output is correct
75 Correct 36 ms 7004 KB Output is correct
76 Correct 37 ms 7008 KB Output is correct
77 Correct 39 ms 6968 KB Output is correct
78 Correct 39 ms 7060 KB Output is correct