#include <bits/stdc++.h>
using namespace std;
//#define LOCAL
#define fi first
#define se second
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define ALL(v) (v).begin(), (v).end()
#define BIT(x) (1LL << (x))
#define MASK(x, i) (((x) >> (i)) & 1)
#define FOR(i, a, b) for(int i = (a), _b = (b); i <= _b; ++ i)
#define FORD(i, b, a) for(int i = (b), _a = (a); i >= _a; -- i)
const string NAME = "BAITAP";
const long long INF = 1e18;
const int inf = 0x3f3f3f3f;
const int MOD = 1e9 + 7;
const int mod = 998244353;
const int mxN = 5e5 + 5;
int N;
vector<pair<long long, long long>> A(mxN);
void init(void){
cin >> N;
FOR(i, 1, N) cin >> A[i].fi >> A[i].se;
}
struct cmp{
bool operator() (const pair<long long, long long> &a, const pair<long long, long long> &b){
return a.fi != b.fi ? a.fi < b.fi : a.se > b.se;
}
};
void process(void){
sort(A.begin() + 1, A.begin() + 1 + N, cmp());
long long ans = -INF;
long long mx = -INF;
FOR(i, 1, N){
A[i].se += A[i - 1].se;
mx = max(A[i].fi - A[i - 1].se, mx);
ans = max(ans, A[i].se - A[i].fi + mx);
}
cout << ans;
}
signed main(void){
ios::sync_with_stdio(false);
cin.tie(nullptr);
#ifdef LOCAL
freopen((NAME + ".INP").c_str(), "r", stdin);
freopen((NAME + ".OUT").c_str(), "w", stdout);
#endif // I/O
init();
process();
cerr << "\nTime elapsed: " << TIME << "s.\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 2 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 3 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 4 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 5 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 6 |
Correct |
3 ms |
8536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 8 |
Correct |
3 ms |
8092 KB |
Output is correct |
| 9 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 10 |
Correct |
3 ms |
8076 KB |
Output is correct |
| 11 |
Correct |
3 ms |
8284 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 2 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 3 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 4 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 5 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 6 |
Correct |
3 ms |
8536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 8 |
Correct |
3 ms |
8092 KB |
Output is correct |
| 9 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 10 |
Correct |
3 ms |
8076 KB |
Output is correct |
| 11 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 12 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 13 |
Correct |
4 ms |
8068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 15 |
Correct |
4 ms |
8280 KB |
Output is correct |
| 16 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 17 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 18 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 19 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 20 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 21 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 23 |
Correct |
3 ms |
8180 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 25 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 26 |
Correct |
3 ms |
8284 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 2 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 3 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 4 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 5 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 6 |
Correct |
3 ms |
8536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 8 |
Correct |
3 ms |
8092 KB |
Output is correct |
| 9 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 10 |
Correct |
3 ms |
8076 KB |
Output is correct |
| 11 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 12 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 13 |
Correct |
4 ms |
8068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 15 |
Correct |
4 ms |
8280 KB |
Output is correct |
| 16 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 17 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 18 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 19 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 20 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 21 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 23 |
Correct |
3 ms |
8180 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 25 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 26 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 27 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 28 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 29 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 30 |
Correct |
6 ms |
8284 KB |
Output is correct |
| 31 |
Correct |
4 ms |
8288 KB |
Output is correct |
| 32 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 33 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 34 |
Correct |
4 ms |
8280 KB |
Output is correct |
| 35 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 36 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 37 |
Correct |
4 ms |
8540 KB |
Output is correct |
| 38 |
Correct |
7 ms |
8284 KB |
Output is correct |
| 39 |
Correct |
4 ms |
8412 KB |
Output is correct |
| 40 |
Correct |
4 ms |
8304 KB |
Output is correct |
| 41 |
Correct |
4 ms |
8288 KB |
Output is correct |
| 42 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 43 |
Correct |
4 ms |
8432 KB |
Output is correct |
| 44 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 45 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 46 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 47 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 48 |
Correct |
6 ms |
8284 KB |
Output is correct |
| 49 |
Correct |
4 ms |
8356 KB |
Output is correct |
| 50 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 51 |
Correct |
4 ms |
8252 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 2 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 3 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 4 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 5 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 6 |
Correct |
3 ms |
8536 KB |
Output is correct |
| 7 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 8 |
Correct |
3 ms |
8092 KB |
Output is correct |
| 9 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 10 |
Correct |
3 ms |
8076 KB |
Output is correct |
| 11 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 12 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 13 |
Correct |
4 ms |
8068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 15 |
Correct |
4 ms |
8280 KB |
Output is correct |
| 16 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 17 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 18 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 19 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 20 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 21 |
Correct |
3 ms |
8288 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 23 |
Correct |
3 ms |
8180 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8280 KB |
Output is correct |
| 25 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 26 |
Correct |
3 ms |
8284 KB |
Output is correct |
| 27 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 28 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 29 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 30 |
Correct |
6 ms |
8284 KB |
Output is correct |
| 31 |
Correct |
4 ms |
8288 KB |
Output is correct |
| 32 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 33 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 34 |
Correct |
4 ms |
8280 KB |
Output is correct |
| 35 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 36 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 37 |
Correct |
4 ms |
8540 KB |
Output is correct |
| 38 |
Correct |
7 ms |
8284 KB |
Output is correct |
| 39 |
Correct |
4 ms |
8412 KB |
Output is correct |
| 40 |
Correct |
4 ms |
8304 KB |
Output is correct |
| 41 |
Correct |
4 ms |
8288 KB |
Output is correct |
| 42 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 43 |
Correct |
4 ms |
8432 KB |
Output is correct |
| 44 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 45 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 46 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 47 |
Correct |
5 ms |
8284 KB |
Output is correct |
| 48 |
Correct |
6 ms |
8284 KB |
Output is correct |
| 49 |
Correct |
4 ms |
8356 KB |
Output is correct |
| 50 |
Correct |
4 ms |
8284 KB |
Output is correct |
| 51 |
Correct |
4 ms |
8252 KB |
Output is correct |
| 52 |
Correct |
123 ms |
20804 KB |
Output is correct |
| 53 |
Correct |
148 ms |
20672 KB |
Output is correct |
| 54 |
Correct |
122 ms |
20820 KB |
Output is correct |
| 55 |
Correct |
128 ms |
20808 KB |
Output is correct |
| 56 |
Correct |
128 ms |
20820 KB |
Output is correct |
| 57 |
Correct |
122 ms |
20820 KB |
Output is correct |
| 58 |
Correct |
127 ms |
20688 KB |
Output is correct |
| 59 |
Correct |
131 ms |
20808 KB |
Output is correct |
| 60 |
Correct |
123 ms |
20948 KB |
Output is correct |
| 61 |
Correct |
125 ms |
20560 KB |
Output is correct |
| 62 |
Correct |
125 ms |
20820 KB |
Output is correct |
| 63 |
Correct |
125 ms |
20816 KB |
Output is correct |
| 64 |
Correct |
120 ms |
20684 KB |
Output is correct |
| 65 |
Correct |
120 ms |
20816 KB |
Output is correct |
| 66 |
Correct |
120 ms |
20672 KB |
Output is correct |
| 67 |
Correct |
119 ms |
20804 KB |
Output is correct |
| 68 |
Correct |
120 ms |
20684 KB |
Output is correct |
