oj.uz

Submission #403395

# Submission time Handle Problem Language Result Execution time Memory
403395 2021-05-13T06:43:59 Z shenxy None (KOI17_shell) C++11
12 / 100
 246 ms 17792 KB 
#include <cstdio>
#include <algorithm>
using namespace std;
int main() {
	int N;
	scanf("%d", &N);
	int A[N][N], S[N][N];
	for (int i = 0; i < N; ++i) {
		for (int j = 0; j < N; ++j) scanf("%d", &A[i][j]);
	}
	S[0][0] = A[0][0];
	for (int i = 1; i < N; ++i) S[i][0] = S[i - 1][0] + A[i][0], S[0][i] = S[0][i - 1] + A[0][i];
	for (int i = 1; i < N; ++i) {
		for (int j = 1; j < N; ++j) S[i][j] = max(S[i - 1][j], S[i][j - 1]) + A[i][j];
	}
	if (N <= 100) {
		int r, c, ans = 0;
		char op;
		for (int i = 0; i < N; ++i) {
			for (int j = 0; j < N; ++j) ans += S[i][j];
		}
		printf("%d\n", ans);
		for (int i = 0; i < N; ++i) {
			scanf(" %c %d %d", &op, &r, &c);
			if (op == 'U') ++A[r - 1][c - 1];
			else --A[r - 1][c - 1];
			S[0][0] = A[0][0];
			ans = 0;
			for (int i = 1; i < N; ++i) S[i][0] = S[i - 1][0] + A[i][0], S[0][i] = S[0][i - 1] + A[0][i];
			for (int i = 1; i < N; ++i) {
				for (int j = 1; j < N; ++j) S[i][j] = max(S[i - 1][j], S[i][j - 1]) + A[i][j];
			}
			for (int i = 0; i < N; ++i) {
				for (int j = 0; j < N; ++j) ans += S[i][j];
			}
			printf("%d\n", ans);
		}
	}
	return 0;
}

Compilation message

shell.cpp: In function 'int main()':
shell.cpp:6:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
shell.cpp:9:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   for (int j = 0; j < N; ++j) scanf("%d", &A[i][j]);
      |                               ~~~~~^~~~~~~~~~~~~~~~
shell.cpp:24:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |    scanf(" %c %d %d", &op, &r, &c);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 332 KB Output is correct
2 Correct 6 ms 332 KB Output is correct
3 Correct 6 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 7 ms 356 KB Output is correct
6 Correct 6 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct
8 Correct 6 ms 332 KB Output is correct
9 Correct 6 ms 332 KB Output is correct
10 Correct 8 ms 332 KB Output is correct

Subtask #2
0 / 34.0

# Verdict Execution time Memory Grader output
1 Incorrect 246 ms 17792 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 332 KB Output is correct
2 Correct 6 ms 332 KB Output is correct
3 Correct 6 ms 356 KB Output is correct
4 Correct 7 ms 332 KB Output is correct
5 Correct 7 ms 356 KB Output is correct
6 Correct 6 ms 332 KB Output is correct
7 Correct 6 ms 332 KB Output is correct
8 Correct 6 ms 332 KB Output is correct
9 Correct 6 ms 332 KB Output is correct
10 Incorrect 246 ms 17792 KB Output isn't correct
11 Halted 0 ms 0 KB -