Submission #103714

#	Time	Username	Problem	Language	Result	Execution time	Memory
103714		E869120	Sure Bet (CEOI17_sure)	C++14	0 / 100	2 ms	384 KiB

sure

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
#pragma warning (disable: 4996)

long double A[100009], B[100009], maxn, v1, v2; int N;
vector<long double>X;

int main() {
	scanf("%d", &N);
	for (int i = 0; i < N; i++) { scanf("%Lf%Lf", &A[i], &B[i]); }
	sort(A, A + N); reverse(A, A + N);
	sort(B, B + N); reverse(B, B + N);
	long double s1 = 0; for (int i = 0; i <= N; i++) { X.push_back(s1); s1 += A[i]; } v1 = s1;
	long double s2 = 0; for (int i = 0; i <= N; i++) { X.push_back(s2); s2 += B[i]; } v2 = s2;
	sort(X.begin(), X.end());
	for (int i = 0; i < X.size(); i++) { if (X[i] > max(v1, v2) + 1e-9) break; maxn = max(maxn, X[i] - 1.0L*i); }
	printf("%.4Lf\n", maxn);
	return 0;
}

Compilation message (stderr)

sure.cpp:5:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
sure.cpp: In function 'int main()':
sure.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < X.size(); i++) { if (X[i] > max(v1, v2) + 1e-9) break; maxn = max(maxn, X[i] - 1.0L*i); }
                  ~~^~~~~~~~~~
sure.cpp:11:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
sure.cpp:12:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < N; i++) { scanf("%Lf%Lf", &A[i], &B[i]); }
                                ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40