제출 #163417

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
163417	2019-11-13 08:53:50	iefnah06	Rope (JOI17_rope)	C++11	100 / 100	1157 ms	80760 KiB

rope

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e6 + 10;
const int MAXM = MAXN;
int N, M;
int A[MAXN];
vector<int> v[MAXM];
int cost[MAXM];
int ind[MAXM];
int main() {
  scanf("%d %d", &N, &M);
  for (int i = 0; i < N; i++) {
    scanf("%d", &A[i]); A[i]--;
    v[A[i]].push_back(i);
    cost[A[i]] -= 1;
  }
  iota(ind, ind + M, 0);
  sort(ind, ind + M, [&](int a, int b) { return cost[a] < cost[b]; });
  for (int c = 0; c < M; c++) {
    int ans = N - int(v[c].size());
    for (int par = 0; par < 2; par++) {
      // at most 2 * |v[c]| incident colors
      int cnt = 0;
      for (int i : v[c]) {
        if (i > 0 && i % 2 != par) {
 
 
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컴파일 시 표준 에러 (stderr) 메시지

rope.cpp: In function 'int main()':
rope.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
rope.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[i]); A[i]--;
   ~~~~~^~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 30 / 30
• Subtask 3: 10 / 10
• Subtask 4: 25 / 25
• Subtask 5: 20 / 20