Submission #919027

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
919027	2024-01-31T05:22:19 Z	TIN	Bob (COCI14_bob)	C++17	120 / 120	885 ms	13720 KB

bob

#include <bits/stdc++.h>

using namespace std;

#define FNAME "test"

const int N = 1005;

int n,m;
int a[N][N];
int d[N][N];
long long res = 0;

void Task() {
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cout << fixed << setprecision(9);
	if (fopen(FNAME".inp","r")) {
		freopen(FNAME".inp","r",stdin);
		freopen(FNAME".out","w",stdout);
	}
}

void Solve() {
	//Your Code
	cin >> n >> m;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) {
			cin >> a[i][j];
		}
	}
	for (int i = 1; i <= n; i++) {
		d[i][m] = m;
		for (int j = m - 1; j > 0; j--) {
			if (a[i][j] == a[i][j + 1]) d[i][j] = d[i][j + 1];
			else d[i][j] = j;
		}
	}
	for (int L = 1; L <= m; L++) {
		for (int R = L; R <= m; R++) {
			int k = 0;
			for (int i = 1; i <= n + 1; i++) {
				if ((d[i][L] >= R) && (i == 1 || a[i][L] == a[i - 1][L])) k++;
				else {
					res += 1LL * k * (k + 1) / 2;
					k = (d[i][L] >= R);
				}
			}
		}
	}
	cout << res << '\n';
}

int main() {
	Task();
	Solve();
	cerr << "\nTime run: " << 1000*clock()/CLOCKS_PER_SEC << "ms";
	return 37^37;
}

Compilation message

bob.cpp: In function 'void Task()':
bob.cpp:19:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   freopen(FNAME".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
bob.cpp:20:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   freopen(FNAME".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4696 KB	Output is correct

Subtask #2

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4696 KB	Output is correct

Subtask #3

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	116 ms	7256 KB	Output is correct

Subtask #4

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	114 ms	7544 KB	Output is correct

Subtask #5

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	113 ms	7764 KB	Output is correct

Subtask #6

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	114 ms	7768 KB	Output is correct

Subtask #7

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	856 ms	12168 KB	Output is correct
2	Correct	723 ms	9604 KB	Output is correct
3	Correct	677 ms	9552 KB	Output is correct

Subtask #8

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	884 ms	13704 KB	Output is correct
2	Correct	786 ms	9604 KB	Output is correct
3	Correct	706 ms	9608 KB	Output is correct

Subtask #9

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	851 ms	13704 KB	Output is correct
2	Correct	701 ms	9600 KB	Output is correct
3	Correct	699 ms	9552 KB	Output is correct

Subtask #10

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	885 ms	13720 KB	Output is correct
2	Correct	709 ms	9608 KB	Output is correct
3	Correct	685 ms	9592 KB	Output is correct