oj.uz

Submission #920657

# Submission time Handle Problem Language Result Execution time Memory
920657 2024-02-02T20:55:19 Z rainboy None (KOI17_shell) C++17
100 / 100
 178 ms 35668 KB 
#include <stdio.h>

#define N	1500

int max(int a, int b) { return a > b ? a : b; }

int main() {
	static int aa[N][N], dp[N][N], dd[N][N];
	int n, h, i, il, ir, j, jl, jr;
	long long sum;

	scanf("%d", &n);
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			scanf("%d", &aa[i][j]);
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			dp[i][j] = (i == 0 && j == 0 ? 0 : max(i == 0 ? -1 : dp[i - 1][j], j == 0 ? -1 : dp[i][j - 1])) + aa[i][j];
	sum = 0;
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			sum += dp[i][j];
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			if (i + 1 < n && j > 0)
				dd[i][j] = dp[i][j] - dp[i + 1][j - 1];
	printf("%lld\n", sum);
	for (h = 0; h < n; h++) {
		static char s[2];

		scanf("%s%d%d", s, &i, &j), i--, j--;
		if (s[0] == 'U') {
			il = i, jl = j, ir = i, jr = j;
			while (jl <= jr) {
				sum += jr - jl + 1;
				if (il + 1 < n && jl > 0)
					dd[il][jl]++;
				if (ir > 0 && jr + 1 < n)
					dd[ir - 1][jr + 1]--;
				if (il == n - 1 && jl == n - 1)
					break;
				if (il + 1 < n && (jl == 0 || dd[il][jl] > 0))
					il++;
				else
					jl++;
				if (jr + 1 < n && (ir == 0 || dd[ir - 1][jr + 1] < 0))
					jr++;
				else
					ir++;
			}
		} else {
			il = i, jl = j, ir = i, jr = j;
			while (jl <= jr) {
				sum -= jr - jl + 1;
				if (il + 1 < n && jl > 0)
					dd[il][jl]--;
				if (ir > 0 && jr + 1 < n)
					dd[ir - 1][jr + 1]++;
				if (il == n - 1 && jl == n - 1)
					break;
				if (il + 1 < n && (jl == 0 || dd[il][jl] >= 0))
					il++;
				else
					jl++;
				if (jr + 1 < n && (ir == 0 || dd[ir - 1][jr + 1] <= 0))
					jr++;
				else
					ir++;
			}
		}
		printf("%lld\n", sum);
	}
	return 0;
}

Compilation message

shell.cpp: In function 'int main()':
shell.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
shell.cpp:15:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |    scanf("%d", &aa[i][j]);
      |    ~~~~~^~~~~~~~~~~~~~~~~
shell.cpp:31:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   31 |   scanf("%s%d%d", s, &i, &j), i--, j--;
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7004 KB Output is correct
2 Correct 2 ms 7004 KB Output is correct
3 Correct 2 ms 7004 KB Output is correct
4 Correct 3 ms 7004 KB Output is correct
5 Correct 3 ms 7004 KB Output is correct
6 Correct 2 ms 7004 KB Output is correct
7 Correct 2 ms 7004 KB Output is correct
8 Correct 2 ms 7004 KB Output is correct
9 Correct 2 ms 7004 KB Output is correct
10 Correct 2 ms 7004 KB Output is correct

Subtask #2
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 157 ms 31056 KB Output is correct
2 Correct 138 ms 31060 KB Output is correct
3 Correct 138 ms 31128 KB Output is correct
4 Correct 139 ms 31316 KB Output is correct
5 Correct 136 ms 31056 KB Output is correct
6 Correct 138 ms 31060 KB Output is correct
7 Correct 141 ms 31252 KB Output is correct
8 Correct 137 ms 31008 KB Output is correct
9 Correct 141 ms 31064 KB Output is correct
10 Correct 137 ms 31136 KB Output is correct

Subtask #3
54.0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7004 KB Output is correct
2 Correct 2 ms 7004 KB Output is correct
3 Correct 2 ms 7004 KB Output is correct
4 Correct 3 ms 7004 KB Output is correct
5 Correct 3 ms 7004 KB Output is correct
6 Correct 2 ms 7004 KB Output is correct
7 Correct 2 ms 7004 KB Output is correct
8 Correct 2 ms 7004 KB Output is correct
9 Correct 2 ms 7004 KB Output is correct
10 Correct 157 ms 31056 KB Output is correct
11 Correct 138 ms 31060 KB Output is correct
12 Correct 138 ms 31128 KB Output is correct
13 Correct 139 ms 31316 KB Output is correct
14 Correct 136 ms 31056 KB Output is correct
15 Correct 138 ms 31060 KB Output is correct
16 Correct 141 ms 31252 KB Output is correct
17 Correct 137 ms 31008 KB Output is correct
18 Correct 141 ms 31064 KB Output is correct
19 Correct 137 ms 31136 KB Output is correct
20 Correct 2 ms 7004 KB Output is correct
21 Correct 153 ms 35376 KB Output is correct
22 Correct 148 ms 35220 KB Output is correct
23 Correct 151 ms 35668 KB Output is correct
24 Correct 178 ms 35584 KB Output is correct
25 Correct 174 ms 35252 KB Output is correct
26 Correct 169 ms 35412 KB Output is correct
27 Correct 137 ms 31056 KB Output is correct
28 Correct 140 ms 31128 KB Output is correct
29 Correct 148 ms 35360 KB Output is correct
30 Correct 148 ms 35356 KB Output is correct
31 Correct 176 ms 35612 KB Output is correct
32 Correct 178 ms 35464 KB Output is correct
33 Correct 137 ms 31124 KB Output is correct
34 Correct 137 ms 31060 KB Output is correct