#include <bits/stdc++.h>
#define lint long long int
#define pb push_back
using namespace std;
int main(){
lint n;
cin >> n;
vector<pair<lint, lint>> v;
for(lint i = 0; i < n; i ++){
lint temp1, temp2;
cin >> temp1 >> temp2;
v.pb({temp1, temp2});
}
sort(v.begin(), v.end());
// cout << endl;
// for(auto i : v){
// cout << i.first << " " << i.second << endl;
// }
// cout << endl;
lint curSUM = v[0].second;
lint globalSUM = v[0].second;
lint curMAX = v[0].first, curMIN = v[0].first;
// int globalMAX = v[0].second, globalMIN = v[0].second;
lint EndIndex;
// cout << curSUM << " " << globalSUM << endl;
for(int i = 1; i < n; i ++){
// curSUM = max(v[i], curSUM + v[i]);
if(v[i].second > (curSUM + v[i].second - v[i].first + curMAX)){ //* what about the equal case?
curSUM = v[i].second;
curMIN = v[i].first;
curMAX = v[i].first;
}
else{
curSUM += (v[i].second-v[i].first+curMAX);
curMAX = v[i].first;
}
if(curSUM > globalSUM){
globalSUM = curSUM;
EndIndex = i;
}
// cout << curSUM << " " << globalSUM << endl;
}
cout << globalSUM;
// lint StartIndex = EndIndex;
// while(true){
// globalSUM -= v[StartIndex].second;
// if(globalSUM == 0){break;}
// StartIndex--;
// }
// cout << endl;
// cout << StartIndex << " " << EndIndex;
// int n;
// cin >> n;
// vector<int> v;
// for(int i = 0; i < n; i ++){
// int temp;
// cin >> temp;
// v.pb(temp);
// }
// int curMax = v[0], globalMax = v[0], EndIndex;
// for(int i = 1; i < n; i ++){
// curMax = max(v[i], v[i] + curMax);
// if(curMax > globalMax){
// globalMax = curMax;
// EndIndex = i;
// }
// }
// // cout << "globalMax = " << globalMax << endl;
// int StartIndex = EndIndex;
// // cout << StartIndex << endl;
// while(globalMax > 0){
// // cout << StartIndex << " " << globalMax << " ";
// globalMax -= v[StartIndex];
// // cout << globalMax << endl;
// StartIndex--;
// }
// // cout << endl;
// StartIndex++;
// for(int i = StartIndex; i <= EndIndex; i ++){
// cout << v[i] << " ";
// }
// cout << endl;
}
Compilation message
art.cpp: In function 'int main()':
art.cpp:28:31: warning: variable 'curMIN' set but not used [-Wunused-but-set-variable]
28 | lint curMAX = v[0].first, curMIN = v[0].first;
| ^~~~~~
art.cpp:30:10: warning: variable 'EndIndex' set but not used [-Wunused-but-set-variable]
30 | lint EndIndex;
| ^~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
432 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
600 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
432 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
600 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
444 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
432 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
432 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
600 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
444 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
432 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
4 ms |
604 KB |
Output is correct |
28 |
Correct |
4 ms |
604 KB |
Output is correct |
29 |
Correct |
4 ms |
604 KB |
Output is correct |
30 |
Correct |
4 ms |
604 KB |
Output is correct |
31 |
Correct |
5 ms |
608 KB |
Output is correct |
32 |
Correct |
3 ms |
708 KB |
Output is correct |
33 |
Correct |
3 ms |
604 KB |
Output is correct |
34 |
Correct |
3 ms |
604 KB |
Output is correct |
35 |
Correct |
4 ms |
572 KB |
Output is correct |
36 |
Correct |
5 ms |
604 KB |
Output is correct |
37 |
Correct |
4 ms |
584 KB |
Output is correct |
38 |
Correct |
4 ms |
612 KB |
Output is correct |
39 |
Correct |
4 ms |
608 KB |
Output is correct |
40 |
Correct |
4 ms |
608 KB |
Output is correct |
41 |
Correct |
3 ms |
668 KB |
Output is correct |
42 |
Correct |
3 ms |
696 KB |
Output is correct |
43 |
Correct |
4 ms |
604 KB |
Output is correct |
44 |
Correct |
3 ms |
608 KB |
Output is correct |
45 |
Correct |
4 ms |
600 KB |
Output is correct |
46 |
Correct |
3 ms |
608 KB |
Output is correct |
47 |
Correct |
4 ms |
608 KB |
Output is correct |
48 |
Correct |
3 ms |
604 KB |
Output is correct |
49 |
Correct |
3 ms |
608 KB |
Output is correct |
50 |
Correct |
4 ms |
608 KB |
Output is correct |
51 |
Correct |
4 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
432 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
600 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
444 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
432 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
4 ms |
604 KB |
Output is correct |
28 |
Correct |
4 ms |
604 KB |
Output is correct |
29 |
Correct |
4 ms |
604 KB |
Output is correct |
30 |
Correct |
4 ms |
604 KB |
Output is correct |
31 |
Correct |
5 ms |
608 KB |
Output is correct |
32 |
Correct |
3 ms |
708 KB |
Output is correct |
33 |
Correct |
3 ms |
604 KB |
Output is correct |
34 |
Correct |
3 ms |
604 KB |
Output is correct |
35 |
Correct |
4 ms |
572 KB |
Output is correct |
36 |
Correct |
5 ms |
604 KB |
Output is correct |
37 |
Correct |
4 ms |
584 KB |
Output is correct |
38 |
Correct |
4 ms |
612 KB |
Output is correct |
39 |
Correct |
4 ms |
608 KB |
Output is correct |
40 |
Correct |
4 ms |
608 KB |
Output is correct |
41 |
Correct |
3 ms |
668 KB |
Output is correct |
42 |
Correct |
3 ms |
696 KB |
Output is correct |
43 |
Correct |
4 ms |
604 KB |
Output is correct |
44 |
Correct |
3 ms |
608 KB |
Output is correct |
45 |
Correct |
4 ms |
600 KB |
Output is correct |
46 |
Correct |
3 ms |
608 KB |
Output is correct |
47 |
Correct |
4 ms |
608 KB |
Output is correct |
48 |
Correct |
3 ms |
604 KB |
Output is correct |
49 |
Correct |
3 ms |
608 KB |
Output is correct |
50 |
Correct |
4 ms |
608 KB |
Output is correct |
51 |
Correct |
4 ms |
604 KB |
Output is correct |
52 |
Correct |
332 ms |
20892 KB |
Output is correct |
53 |
Correct |
330 ms |
20868 KB |
Output is correct |
54 |
Correct |
353 ms |
20908 KB |
Output is correct |
55 |
Correct |
333 ms |
20896 KB |
Output is correct |
56 |
Correct |
311 ms |
20908 KB |
Output is correct |
57 |
Correct |
785 ms |
20872 KB |
Output is correct |
58 |
Correct |
295 ms |
20900 KB |
Output is correct |
59 |
Correct |
305 ms |
20824 KB |
Output is correct |
60 |
Correct |
291 ms |
20876 KB |
Output is correct |
61 |
Correct |
298 ms |
20780 KB |
Output is correct |
62 |
Correct |
302 ms |
21004 KB |
Output is correct |
63 |
Correct |
293 ms |
20912 KB |
Output is correct |
64 |
Correct |
310 ms |
20908 KB |
Output is correct |
65 |
Correct |
347 ms |
20984 KB |
Output is correct |
66 |
Correct |
316 ms |
20904 KB |
Output is correct |
67 |
Correct |
303 ms |
20924 KB |
Output is correct |
68 |
Correct |
320 ms |
20904 KB |
Output is correct |