#include <stdio.h>
#include <string.h>
#define N 10000
#define INF 0x3f3f3f3f
int min(int a, int b) { return a < b ? a : b; }
int max(int a, int b) { return a > b ? a : b; }
unsigned int X = 12345;
int rand_() {
return (X *= 3) >> 1;
}
void sort(int *aa, int l, int r) {
while (l < r) {
int i = l, j = l, k = r, a = aa[l + rand_() % (r - l)], tmp;
while (j < k)
if (aa[j] == a)
j++;
else if (aa[j] > a) {
tmp = aa[i], aa[i] = aa[j], aa[j] = tmp;
i++, j++;
} else {
k--;
tmp = aa[j], aa[j] = aa[k], aa[k] = tmp;
}
sort(aa, l, i);
l = k;
}
}
int main() {
static int aa[N], dp[N + 1];
int n, m, i, j, ans;
scanf("%d%d", &n, &m);
for (i = 1; i <= n; i++)
scanf("%d", &aa[i]);
sort(aa, 1, n + 1);
for (i = 1; i <= n; i++)
aa[i] += aa[i - 1];
memset(dp, 0x3f, (n + 1) * sizeof *dp), dp[0] = 0;
while (m--) {
int c, p;
scanf("%d%d", &c, &p);
for (i = n; i >= 0; i--) {
j = min(i + c, n);
dp[j] = min(dp[j], dp[i] + p);
}
}
ans = 0;
for (i = 0; i <= n; i++)
if (dp[i] != INF)
ans = max(ans, aa[i] - dp[i]);
printf("%d\n", ans);
return 0;
}
Compilation message
t2.c: In function 'main':
t2.c:39:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
39 | scanf("%d%d", &n, &m);
| ^~~~~~~~~~~~~~~~~~~~~
t2.c:41:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
41 | scanf("%d", &aa[i]);
| ^~~~~~~~~~~~~~~~~~~
t2.c:49:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
49 | scanf("%d%d", &c, &p);
| ^~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
340 KB |
Output is correct |
5 |
Correct |
3 ms |
340 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
3 ms |
340 KB |
Output is correct |
10 |
Correct |
3 ms |
308 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
14 ms |
448 KB |
Output is correct |
2 |
Correct |
13 ms |
420 KB |
Output is correct |
3 |
Correct |
10 ms |
340 KB |
Output is correct |
4 |
Correct |
12 ms |
352 KB |
Output is correct |
5 |
Correct |
9 ms |
312 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
8 ms |
340 KB |
Output is correct |
8 |
Correct |
13 ms |
308 KB |
Output is correct |
9 |
Correct |
2 ms |
212 KB |
Output is correct |
10 |
Correct |
12 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
22 ms |
368 KB |
Output is correct |
2 |
Correct |
15 ms |
392 KB |
Output is correct |
3 |
Correct |
18 ms |
340 KB |
Output is correct |
4 |
Correct |
18 ms |
420 KB |
Output is correct |
5 |
Correct |
15 ms |
304 KB |
Output is correct |
6 |
Correct |
16 ms |
372 KB |
Output is correct |
7 |
Correct |
4 ms |
212 KB |
Output is correct |
8 |
Correct |
13 ms |
340 KB |
Output is correct |
9 |
Correct |
10 ms |
340 KB |
Output is correct |
10 |
Correct |
10 ms |
404 KB |
Output is correct |