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Submission #448532

# Submission time Handle Problem Language Result Execution time Memory
448532 2021-07-30T12:41:08 Z rainboy Kas (COCI17_kas) C
100 / 100
 181 ms 1860 KB 
#include <stdio.h>
#include <string.h>

#define S	100000

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

int main() {
	static int dp[S * 2 + 1], dq[S * 2 + 1];
	int n, sum;

	scanf("%d", &n);
	memset(dp, -1, (S * 2 + 1) * sizeof *dp), dp[S] = 0;
	sum = 0;
	while (n--) {
		int c, s;

		scanf("%d", &c);
		sum += c;
		memcpy(dq, dp, (S * 2 + 1) * sizeof *dp);
		for (s = 0; s <= S * 2; s++)
			if (dp[s] != -1)
				dq[s - c] = max(dq[s - c], dp[s] + c), dq[s + c] = max(dq[s + c], dp[s] + c);
		memcpy(dp, dq, (S * 2 + 1) * sizeof *dq);
	}
	printf("%d\n", sum - dp[S] / 2);
	return 0;
}

Compilation message

kas.c: In function 'main':
kas.c:12:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
kas.c:18:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |   scanf("%d", &c);
      |   ^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1740 KB Output is correct
2 Correct 4 ms 1740 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1740 KB Output is correct
2 Correct 4 ms 1740 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1740 KB Output is correct
2 Correct 4 ms 1728 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1740 KB Output is correct
2 Correct 5 ms 1740 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1740 KB Output is correct
2 Correct 5 ms 1740 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1836 KB Output is correct
2 Correct 11 ms 1740 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 1836 KB Output is correct
2 Correct 16 ms 1840 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 1860 KB Output is correct
2 Correct 68 ms 1740 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 1748 KB Output is correct
2 Correct 122 ms 1816 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 148 ms 1820 KB Output is correct
2 Correct 181 ms 1820 KB Output is correct