#include <bits/stdc++.h>
using namespace std;
constexpr int maxn = 2e5+10;
long long a[maxn]; // quantos caras precisam passar por cada pos
vector<pair<int,int>> opa[maxn];
bool check(long long qtd_mov, long long M, int sz) {
vector<long long> mov(sz+1);
for(int i = 1; i <= sz; i++)
mov[i] = (a[i] + qtd_mov - M + 1) / 2;
priority_queue<pair<int, int>> q;
vector<long long> add_lazy(sz+1);
long long usados = 0, lazy = 0;
for(int i = 1; i <= sz; i++) {
for(pair<int,int> par : opa[i])
q.push(par);
lazy += add_lazy[i];
mov[i] += lazy;
while(mov[i] > 0) {
if(!q.size() || q.top().first <= i) return 0; // não da pra fazer
pair<int,int> usar = q.top();
q.pop();
if(usar.second > mov[i])
q.push({usar.first, usar.second - mov[i]}), usar.second = (int)mov[i];
mov[i] -= usar.second;
lazy -= usar.second;
add_lazy[usar.first] += usar.second;
usados += usar.second;
}
}
return usados <= qtd_mov;
}
int main() {
int sz, n; scanf("%d %d", &sz, &n);
for(int i = 0; i < n; i++) {
int l, r, c;
scanf("%d %d %d", &l, &r, &c);
if(l > r) swap(l, r);
a[l] += c, a[r] -= c;
opa[l].push_back({r, c});
}
long long mx = 0;
for(int i = 1; i <= sz; i++)
a[i] += a[i-1], mx = max(mx, a[i]);
long long L = 0, R = mx, ans = -1;
while(L <= R) {
long long M = (L+R) >> 1;
long long qtd_mov = mx - M;
// a[i] + qtd_mov - 2*mov[i] <= M
// 2*mov[i] >= a[i] + qtd_mov - M
// mov[i] >= ceiling( (a[i] + qtd_mov - M) / 2 )
// mov[i] >= (a[i] + qtd_mov - M + 1) / 2
if(check(qtd_mov, M, sz) || check(qtd_mov+1, M, sz))
ans = M, R = M-1;
else
L = M+1;
}
printf("%lld\n", ans);
}
Compilation message
arranging_tickets.cpp: In function 'int main()':
arranging_tickets.cpp:44:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
44 | int sz, n; scanf("%d %d", &sz, &n);
| ~~~~~^~~~~~~~~~~~~~~~~~
arranging_tickets.cpp:47:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
47 | scanf("%d %d %d", &l, &r, &c);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4968 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4968 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5008 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 23 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 24 |
Correct |
3 ms |
4980 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5004 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4968 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5008 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 23 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 24 |
Correct |
3 ms |
4980 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
7 ms |
5220 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 32 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5144 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5152 KB |
Output is correct |
| 36 |
Correct |
6 ms |
5216 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 39 |
Correct |
6 ms |
5148 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4968 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5008 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 23 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 24 |
Correct |
3 ms |
4980 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
7 ms |
5220 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 32 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5144 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5152 KB |
Output is correct |
| 36 |
Correct |
6 ms |
5216 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 39 |
Correct |
6 ms |
5148 KB |
Output is correct |
| 40 |
Correct |
232 ms |
14976 KB |
Output is correct |
| 41 |
Correct |
248 ms |
15048 KB |
Output is correct |
| 42 |
Correct |
189 ms |
14712 KB |
Output is correct |
| 43 |
Correct |
262 ms |
14780 KB |
Output is correct |
| 44 |
Correct |
285 ms |
14944 KB |
Output is correct |
| 45 |
Correct |
302 ms |
14580 KB |
Output is correct |
| 46 |
Correct |
202 ms |
14544 KB |
Output is correct |
| 47 |
Correct |
93 ms |
13776 KB |
Output is correct |
| 48 |
Correct |
105 ms |
13884 KB |
Output is correct |
| 49 |
Correct |
84 ms |
11680 KB |
Output is correct |
| 50 |
Correct |
63 ms |
13324 KB |
Output is correct |
| 51 |
Correct |
59 ms |
12516 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 2 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 3 |
Correct |
4 ms |
4968 KB |
Output is correct |
| 4 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 5 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 6 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 7 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 8 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 9 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 10 |
Correct |
3 ms |
4972 KB |
Output is correct |
| 11 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 12 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 13 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 14 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 15 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 16 |
Correct |
4 ms |
4948 KB |
Output is correct |
| 17 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 18 |
Correct |
4 ms |
5008 KB |
Output is correct |
| 19 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 20 |
Correct |
5 ms |
4948 KB |
Output is correct |
| 21 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 22 |
Correct |
3 ms |
5012 KB |
Output is correct |
| 23 |
Correct |
3 ms |
4948 KB |
Output is correct |
| 24 |
Correct |
3 ms |
4980 KB |
Output is correct |
| 25 |
Correct |
3 ms |
5008 KB |
Output is correct |
| 26 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 27 |
Correct |
3 ms |
5004 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5220 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 30 |
Correct |
7 ms |
5220 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 32 |
Correct |
6 ms |
5204 KB |
Output is correct |
| 33 |
Correct |
6 ms |
5144 KB |
Output is correct |
| 34 |
Correct |
4 ms |
5076 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5152 KB |
Output is correct |
| 36 |
Correct |
6 ms |
5216 KB |
Output is correct |
| 37 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5204 KB |
Output is correct |
| 39 |
Correct |
6 ms |
5148 KB |
Output is correct |
| 40 |
Correct |
232 ms |
14976 KB |
Output is correct |
| 41 |
Correct |
248 ms |
15048 KB |
Output is correct |
| 42 |
Correct |
189 ms |
14712 KB |
Output is correct |
| 43 |
Correct |
262 ms |
14780 KB |
Output is correct |
| 44 |
Correct |
285 ms |
14944 KB |
Output is correct |
| 45 |
Correct |
302 ms |
14580 KB |
Output is correct |
| 46 |
Correct |
202 ms |
14544 KB |
Output is correct |
| 47 |
Correct |
93 ms |
13776 KB |
Output is correct |
| 48 |
Correct |
105 ms |
13884 KB |
Output is correct |
| 49 |
Correct |
84 ms |
11680 KB |
Output is correct |
| 50 |
Correct |
63 ms |
13324 KB |
Output is correct |
| 51 |
Correct |
59 ms |
12516 KB |
Output is correct |
| 52 |
Correct |
1081 ms |
15872 KB |
Output is correct |
| 53 |
Correct |
674 ms |
15524 KB |
Output is correct |
| 54 |
Correct |
1051 ms |
15816 KB |
Output is correct |
| 55 |
Correct |
1061 ms |
15696 KB |
Output is correct |
| 56 |
Correct |
887 ms |
15464 KB |
Output is correct |
| 57 |
Correct |
995 ms |
15256 KB |
Output is correct |
| 58 |
Correct |
988 ms |
15352 KB |
Output is correct |
| 59 |
Correct |
555 ms |
12252 KB |
Output is correct |
