//Autor: Bartłomiej Czarkowski
#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
template<class A,class B>auto&operator<<(ostream&o,pair<A,B>p){return o<<'('<<p.first<<", "<<p.second<<')';}
template<class T>auto operator<<(ostream&o,T x)->decltype(x.end(),o){o<<'{';int i=0;for(auto e:x)o<<(", ")+2*!i++<<e;return o<<'}';}
#define debug(x...) cerr<<"["#x"]: ",[](auto...$){((cerr<<$<<"; "),...);}(x),cerr<<'\n'
#else
#define debug(...) {}
#endif
int n;
double odp;
double wyn[2];
int main() {
scanf("%d", &n);
vector<vector<double>> v(2, vector<double>(n));
for (int i = 0; i < n; ++i) {
scanf("%lf%lf", &v[0][i], &v[1][i]);
}
sort(v[0].begin(), v[0].end());
sort(v[1].begin(), v[1].end());
reverse(v[0].begin(), v[0].end());
reverse(v[1].begin(), v[1].end());
int p[2] = {0, 0};
while (true) {
if (wyn[0] < wyn[1]) {
if (p[0] == n) {
break;
}
wyn[0] += v[0][p[0]++];
odp = max(odp, min(wyn[0], wyn[1]) - p[0] - p[1]);
}
else {
if (p[1] == n) {
break;
}
wyn[1] += v[1][p[1]++];
odp = max(odp, min(wyn[0], wyn[1]) - p[0] - p[1]);
}
}
printf("%.4lf\n", odp);
return 0;
}
Compilation message
sure.cpp: In function 'int main()':
sure.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
17 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
sure.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
20 | scanf("%lf%lf", &v[0][i], &v[1][i]);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
300 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
300 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
300 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
336 KB |
Output is correct |
16 |
Correct |
1 ms |
320 KB |
Output is correct |
17 |
Correct |
57 ms |
3232 KB |
Output is correct |
18 |
Correct |
59 ms |
3140 KB |
Output is correct |
19 |
Correct |
58 ms |
3128 KB |
Output is correct |
20 |
Correct |
58 ms |
3236 KB |
Output is correct |
21 |
Correct |
62 ms |
3516 KB |
Output is correct |
22 |
Correct |
58 ms |
3256 KB |
Output is correct |
23 |
Correct |
63 ms |
3124 KB |
Output is correct |
24 |
Correct |
59 ms |
3228 KB |
Output is correct |
25 |
Correct |
60 ms |
3148 KB |
Output is correct |
26 |
Correct |
64 ms |
3524 KB |
Output is correct |