#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<int, int> pii;
#define SZ(x) (int) x.size()
#define F first
#define S second
const int N = 3e5 + 10, MOD = 1e9 + 7;
int A[N], B[N], ord[N], M[N], m, s, n; set<pii, greater<pii>> st1, st2;
int main() {
scanf("%d%d%d", &n, &m, &s);
for (int i = 1; i <= n; i++)
scanf("%d%d", &A[i], &B[i]);
iota(ord + 1, ord + n + 1, 1);
sort(ord + 1, ord + n + 1, [&] (int a, int b) { return A[a] > A[b]; });
ll sum = 0;
for (int i = 1; i <= m; i++) {
st1.insert({B[ord[i]] - A[ord[i]], ord[i]});
sum += A[ord[i]];
}
for (int i = m + 1; i <= n; i++)
st2.insert({B[ord[i]], ord[i]});
int ptr = m + 1;
for (int i = 1; i <= s; i++) {
while (ptr <= n && M[ord[ptr]]) ptr++;
int c1 = (SZ(st1) ? st1.begin()->F + A[ord[ptr]] : -MOD),
c2 = (SZ(st2) ? st2.begin()->F : -MOD);
if (c2 > c1) {
M[st2.begin()->S] = 1, sum += c2;
st2.erase(st2.begin());
} else {
M[st1.begin()->S] = 1, sum += c1;
st1.erase(st1.begin());
st1.insert({B[ord[ptr]] - A[ord[ptr]], ord[ptr]});
}
}
printf("%lld\n", sum);
return 0;
}
Compilation message
school.cpp: In function 'int main()':
school.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
16 | scanf("%d%d%d", &n, &m, &s);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~
school.cpp:18:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
18 | scanf("%d%d", &A[i], &B[i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
296 KB |
Output is correct |
| 3 |
Correct |
0 ms |
204 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
| 5 |
Incorrect |
0 ms |
296 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
332 KB |
Output isn't correct |
| 7 |
Incorrect |
3 ms |
632 KB |
Output isn't correct |
| 8 |
Incorrect |
3 ms |
588 KB |
Output isn't correct |
| 9 |
Incorrect |
3 ms |
588 KB |
Output isn't correct |
| 10 |
Incorrect |
3 ms |
572 KB |
Output isn't correct |
| 11 |
Incorrect |
4 ms |
588 KB |
Output isn't correct |
| 12 |
Incorrect |
3 ms |
588 KB |
Output isn't correct |
| 13 |
Incorrect |
22 ms |
2628 KB |
Output isn't correct |
| 14 |
Incorrect |
50 ms |
5188 KB |
Output isn't correct |
| 15 |
Incorrect |
118 ms |
10244 KB |
Output isn't correct |
| 16 |
Incorrect |
146 ms |
11584 KB |
Output isn't correct |
| 17 |
Incorrect |
172 ms |
14020 KB |
Output isn't correct |
| 18 |
Incorrect |
180 ms |
15368 KB |
Output isn't correct |
| 19 |
Incorrect |
207 ms |
16552 KB |
Output isn't correct |
| 20 |
Incorrect |
248 ms |
19044 KB |
Output isn't correct |
