Submission #47563

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
47563	2018-05-05 03:49:37	kuroni	Schools (IZhO13_school)	C++14	100 / 100	174 ms	8152 KiB

school

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#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
#include <queue>
using namespace std;
const int N = 300005;
struct SCity
{
    int a, b;
} s[N];
int n;
unsigned int a, b;
long long pre[N], suf[N];
priority_queue<int, vector<int>, greater<int>> pq;
int main()
{
    scanf("%d%u%u", &n, &a, &b);
    for (int i = 1; i <= n; i++)
        scanf("%d%d", &s[i].a, &s[i].b);
    sort(s + 1, s + n + 1, [](const SCity &a, const SCity &b) { return a.a - a.b > b.a - b.b; });
    for (int i = 1; i <= n; i++)
    {
        if (pq.size() < a)
        {
            pre[i] = pre[i - 1] + s[i].a;
            pq.push(s[i].a);
 
 
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Compilation message (stderr)

school.cpp: In function 'int main()':
school.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%u%u", &n, &a, &b);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
school.cpp:23:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &s[i].a, &s[i].b);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100