AtCoder Grand Contest 008

Submission #1041974

Source codeソースコード

#include <algorithm>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <deque>
#include <iomanip>
#include <iostream>
#include <limits>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <vector>

#define FOR(i,k,n) for (int (i)=(k); (i)<(n); ++(i))
#define rep(i,n) FOR(i,0,n)
#define pb push_back
#define all(v) begin(v), end(v)
#define debug(x) cerr<< #x <<": "<<x<<endl
#define debug2(x,y) cerr<< #x <<": "<< x <<", "<< #y <<": "<< y <<endl

using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vector<int> > vvi;
typedef vector<ll> vll;
typedef vector<vector<ll> > vvll;
template<class T> using vv=vector<vector< T > >;

int main() {
  int n, k;
  scanf("%d %d", &n, &k);
  vll orig(n, 0);
  vll altered(n, 0);
  ll sum_all = 0;
  rep (i, n) {
    scanf("%lld", &orig[i]);
    if (orig[i] > 0) {
      altered[i] = orig[i];
      sum_all += orig[i];
    }
  }
  vll sumk_orig(n-k+1, 0);
  vll sumk_altered(n-k+1, 0);
  rep (i, k) {
    sumk_orig[0] += orig[i];
    sumk_altered[0] += altered[i];
  }
  FOR (i, 1, n-k+1) {
    sumk_orig[i] = sumk_orig[i-1] - orig[i-1] + orig[i-1+k];
    sumk_altered[i] = sumk_altered[i-1] - altered[i-1] + altered[i-1+k];
  }
  ll ans = 0;

  rep (i, n-k+1) {
    ans = max(ans, sum_all - sumk_altered[i] + max(0LL, sumk_orig[i]));
  }
  printf("%lld\n", ans);

  return 0;
}

Submission

Task問題 B - Contiguous Repainting
User nameユーザ名 cyglef
Created time投稿日時
Language言語 C++14 (Clang 3.8.0)
Status状態 AC
Score得点 400
Source lengthソースコード長 1618 Byte
File nameファイル名
Exec time実行時間 20 ms
Memory usageメモリ使用量 3328 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - 0_00.txt,0_01.txt,0_02.txt,0_03.txt
All 400 / 400 0_00.txt,0_01.txt,0_02.txt,0_03.txt,1_00.txt,1_01.txt,1_02.txt,1_03.txt,1_04.txt,1_05.txt,1_06.txt,1_07.txt,1_08.txt,1_09.txt,1_10.txt,1_11.txt,1_12.txt,1_13.txt,1_14.txt,1_15.txt,1_16.txt,1_17.txt,1_18.txt,1_19.txt,1_20.txt,1_21.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
0_00.txt AC 6 ms 888 KB
0_01.txt AC 3 ms 256 KB
0_02.txt AC 3 ms 256 KB
0_03.txt AC 3 ms 256 KB
1_00.txt AC 3 ms 256 KB
1_01.txt AC 3 ms 256 KB
1_02.txt AC 3 ms 256 KB
1_03.txt AC 14 ms 3328 KB
1_04.txt AC 20 ms 3328 KB
1_05.txt AC 20 ms 3328 KB
1_06.txt AC 19 ms 3328 KB
1_07.txt AC 19 ms 3328 KB
1_08.txt AC 17 ms 1792 KB
1_09.txt AC 17 ms 1792 KB
1_10.txt AC 17 ms 1792 KB
1_11.txt AC 18 ms 2304 KB
1_12.txt AC 17 ms 2304 KB
1_13.txt AC 18 ms 2304 KB
1_14.txt AC 17 ms 1792 KB
1_15.txt AC 18 ms 2560 KB
1_16.txt AC 19 ms 2816 KB
1_17.txt AC 18 ms 2944 KB
1_18.txt AC 18 ms 2304 KB
1_19.txt AC 17 ms 2176 KB
1_20.txt AC 18 ms 2176 KB
1_21.txt AC 18 ms 2176 KB