Submission #316045

#	Time	Username	Problem	Language	Result	Execution time	Memory
316045		FlashGamezzz	Bob (COCI14_bob)	C++17	0 / 120	138 ms	21752 KiB

bob

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <fstream>
#include <algorithm>
#include <string>

using namespace std;

int n, m, grid[1000][1000];
long long dp[1000][1000];
int main() {
	ios_base::sync_with_stdio(false);
	cin >> n >> m;
	for (int i = 0; i < n; i++){
		for (int j = 0; j < m; j++){
			cin >> grid[i][j];
		}
	}
	dp[0][0] = 1;
	for (int i = 1; i < n; i++){
		dp[i][0] = 1;
		if (grid[i-1][0] == grid[i][0]){
			dp[i][0] += dp[i-1][0];
		}
	}
	for (int i = 1; i < m; i++){
		dp[0][i] = 1;
		if (grid[0][i-1] == grid[0][i]){
			dp[0][i] += dp[0][i-1];
		}
	}
	for (int i = 1; i < n; i++){
		for (int j = 1; j < m; j++){
			dp[i][j] = 1;
			if (grid[i-1][j] == grid[i][j]){
				dp[i][j] += dp[i-1][j];
			}
			if (grid[i][j-1] == grid[i][j]){
				dp[i][j] += dp[i][j-1];
			}
			if (grid[i][j] > 1 && grid[i-1][j-1] == grid[i][j]){
				dp[i][j] -= dp[i-1][j-1];
			}
		}
	}
	long long ans = 0;
	for (int i = 0; i < n; i++){
		for (int j = 0; j < m; j++){
			//cout << dp[i][j] << " ";
			ans += dp[i][j];
		}
		//cout << endl;
	}
	cout << ans << endl;
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 12
• Subtask 3: 0 / 12
• Subtask 4: 0 / 12
• Subtask 5: 0 / 12
• Subtask 6: 0 / 12
• Subtask 7: 0 / 12
• Subtask 8: 0 / 12
• Subtask 9: 0 / 12
• Subtask 10: 0 / 12