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Submission #636827

# Submission time Handle Problem Language Result Execution time Memory
636827 2022-08-30T09:44:26 Z drkarlicio2107 Boat (APIO16_boat) C++14
0 / 100
 16 ms 16212 KB 
#include <bits/stdc++.h>
using namespace std; long long int mod=1e9+7;
pair <long long int, long long int> l [1000];
long long int dp [2][1000010];
int main(){
	int n; cin >> n;
	for (int i=0; i<n; i++){
		int a,b; cin >> a >> b; 
		l [i].first=a; l[i].second=b;
	}
	dp [0][0]=1;
	for (int j=1; j<1000010; j++) dp [0][j]+=dp [0][j-1];
	for (int i=0; i<n; i++){
		for (int j=l [i].first; j<=l [i].second; j++){
			dp [1][j]=(dp [1][j]+dp [0][j-1])%mod;
			//cout << dp [1][j] << endl;
		}
		dp [1][0]=(dp [1][0]+dp [0][1000009])%mod;
		for (int j=1; j<1000010; j++){
			//cout << dp [1][j] << " "; 
			dp[1][j]=(dp [1][j]+dp [1][j-1])%mod; 
			//cout << dp [1][j] << endl;
		}
		//cout << endl;
		swap (dp [0], dp [1]);
		for (int j=0; j<1000010; j++) dp [1][j]=0;
	}
	cout << (dp [0][1000009]-1)%mod << endl;
	return 0;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 16 ms 16212 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 16 ms 16212 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 16212 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 16 ms 16212 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -