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Submission #394097

# Submission time Handle Problem Language Result Execution time Memory
394097 2021-04-25T14:27:18 Z jeqcho Boat (APIO16_boat) C++17
0 / 100
 12 ms 8396 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define fi first
#define se second

int const N=5e2+3;
int const A=1e3+3;
int a[N],b[N];
ll dp[N][A];
ll mod =1e9+7;

int main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n;
	cin>>n;
	F0R(i,n)
	{
		cin>>a[i]>>b[i];
	}
	fill(dp[0],dp[0]+A,0);
	dp[0][0]=1;
	F0R(i,n)
	{
		ll sum=0;
		F0R(j,b[i]+1)
		{
			sum+=dp[i][j];
			sum%=mod;
			if(j<a[i])
			{
				dp[i+1][j]=dp[i][j];
			}
			else
			{
				dp[i+1][j]=sum;
			}
		}
	}
	ll ans=0;
	FOR(j,1,A)
	{
		ans+=dp[n][j];
	}
	cout<<ans<<'\n';
	return 0;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 8396 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 8396 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 12 ms 8380 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Runtime error 10 ms 8396 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -