Submission #3225427


Source Code Expand

#include <cassert>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <iostream>
#define REP(i, n) for(int i = 0; i < (int)(n); ++i)
using namespace std;
typedef long long ll;

struct P {
  int a, b;
};
P ps[200000+10];
bool operator<(const P& p1, const P& p2) {
  if((p1.b-p1.a) != (p2.b-p2.a)) {
    return (p1.b-p1.a) > (p2.b-p2.a);
  } else {
    return p1.b > p2.b;
  }
}

int main(void) {
  int n;
  scanf("%d", &n);
  REP(i, n) {
    scanf("%d%d", &ps[i].a, &ps[i].b);
  }
  sort(ps, ps+n);
  // REP(i, n) {
  //   cerr << ps[i].a << " " << ps[i].b << endl;
  // }
  ll a = 0;
  ll b = 0;
  REP(i, n) {
    const P& p = ps[i];
    ll lead = b-a;
    if(p.a - lead < p.b) {
      a += p.a;
      b += p.b;
    }
  }
  cout << b << endl;
  
  return 0;
}

Submission Info

Submission Time
Task E - Tozan and Gezan
User ush
Language C++14 (GCC 5.4.1)
Score 0
Code Size 821 Byte
Status WA
Exec Time 7 ms
Memory 384 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:24:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:26:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &ps[i].a, &ps[i].b);
                                      ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 700
Status
AC × 3
AC × 13
WA × 22
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt WA 7 ms 384 KB
02.txt WA 7 ms 384 KB
03.txt WA 7 ms 384 KB
04.txt WA 7 ms 384 KB
05.txt WA 7 ms 384 KB
06.txt WA 7 ms 384 KB
07.txt WA 7 ms 384 KB
08.txt WA 7 ms 384 KB
09.txt WA 7 ms 384 KB
10.txt WA 7 ms 384 KB
11.txt AC 7 ms 384 KB
12.txt AC 6 ms 384 KB
13.txt AC 6 ms 384 KB
14.txt AC 6 ms 384 KB
15.txt AC 6 ms 384 KB
16.txt AC 6 ms 384 KB
17.txt AC 6 ms 384 KB
18.txt AC 6 ms 384 KB
19.txt WA 7 ms 384 KB
20.txt WA 7 ms 384 KB
21.txt WA 7 ms 384 KB
22.txt WA 7 ms 384 KB
23.txt WA 7 ms 384 KB
24.txt WA 7 ms 384 KB
25.txt WA 7 ms 384 KB
26.txt WA 7 ms 384 KB
27.txt WA 6 ms 384 KB
28.txt WA 6 ms 384 KB
29.txt WA 6 ms 384 KB
30.txt WA 6 ms 384 KB
31.txt AC 1 ms 256 KB
32.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB