[Codeforces673C]Bear and Colors(枚举,暴力)

题目链接:http://codeforces.com/contest/673/problem/C

题意:给一串数,不同大小的区间内出现次数最多的那个数在计数的时候会+1,问所有区间都这样计一次数,所有的数字的计数结果。如果有数字出现次数相同多,取最小的那个。

数据<=5000,那就暴力枚举每一个区间,每次维护当前出现最多次数和当前需要计数的那个数,每次更新一个值,那最大值就是这个值或者是之前存好的。每次判断就可以了,注意相同的时候取最小的那个数。

  1 /*
  2 ━━━━━┒ギリギリ♂ eye!
  3 ┓┏┓┏┓┃キリキリ♂ mind!
  4 ┛┗┛┗┛┃\○/
  5 ┓┏┓┏┓┃ /
  6 ┛┗┛┗┛┃ノ)
  7 ┓┏┓┏┓┃
  8 ┛┗┛┗┛┃
  9 ┓┏┓┏┓┃
 10 ┛┗┛┗┛┃
 11 ┓┏┓┏┓┃
 12 ┛┗┛┗┛┃
 13 ┓┏┓┏┓┃
 14 ┃┃┃┃┃┃
 15 ┻┻┻┻┻┻
 16 */
 17 #include <algorithm>
 18 #include <iostream>
 19 #include <iomanip>
 20 #include <cstring>
 21 #include <climits>
 22 #include <complex>
 23 #include <fstream>
 24 #include <cassert>
 25 #include <cstdio>
 26 #include <bitset>
 27 #include <vector>
 28 #include <deque>
 29 #include <queue>
 30 #include <stack>
 31 #include <ctime>
 32 #include <set>
 33 #include <map>
 34 #include <cmath>
 35 using namespace std;
 36 #define fr first
 37 #define sc second
 38 #define cl clear
 39 #define BUG puts("here!!!")
 40 #define W(a) while(a--)
 41 #define pb(a) push_back(a)
 42 #define Rlf(a) scanf("%llf", &a);
 43 #define Rint(a) scanf("%d", &a)
 44 #define Rll(a) scanf("%I64d", &a)
 45 #define Rs(a) scanf("%s", a)
 46 #define Cin(a) cin >> a
 47 #define FRead() freopen("in", "r", stdin)
 48 #define FWrite() freopen("out", "w", stdout)
 49 #define Rep(i, len) for(int i = 0; i < (len); i++)
 50 #define For(i, a, len) for(int i = (a); i < (len); i++)
 51 #define Cls(a) memset((a), 0, sizeof(a))
 52 #define Clr(a, x) memset((a), (x), sizeof(a))
 53 #define Full(a) memset((a), 0x7f7f, sizeof(a))
 54 #define lrt rt << 1
 55 #define rrt rt << 1 | 1
 56 #define pi 3.14159265359
 57 #define RT return
 58 #define lowbit(x) x & (-x)
 59 #define onenum(x) __builtin_popcount(x)
 60 typedef long long LL;
 61 typedef long double LD;
 62 typedef unsigned long long ULL;
 63 typedef pair<int, int> pii;
 64 typedef pair<string, int> psi;
 65 typedef map<string, int> msi;
 66 typedef vector<int> vi;
 67 typedef vector<LL> vl;
 68 typedef vector<vl> vvl;
 69 typedef vector<bool> vb;
 70 
 71 const int maxn = 5050;
 72 int n;
 73 int t[maxn];
 74 int vis[maxn];
 75 int cnt[maxn];
 76 
 77 int main() {
 78     // FRead();
 79     while(~Rint(n)) {
 80         Cls(vis); Cls(cnt);
 81         For(i, 1, n+1) Rint(t[i]);
 82         For(i, 1, n+1) {
 83             int curmax = 0, pos; Cls(vis);
 84             curmax = ++vis[t[i]];
 85             pos = t[i];
 86             cnt[pos]++;
 87             For(j, i+1, n+1) {
 88                 vis[t[j]]++;
 89                 if(curmax < vis[t[j]]) {
 90                     curmax = vis[t[j]];
 91                     pos = t[j];
 92                 }
 93                 else if(curmax == vis[t[j]]) pos = min(pos, t[j]);
 94                 cnt[pos]++;
 95             }
 96         }
 97         For(i, 1, n+1) printf("%d ", cnt[i]);
 98         printf("
");
 99     }
100     RT 0;
101 }
原文地址:https://www.cnblogs.com/kirai/p/5551014.html