CodeForces 673C Bear and Colors
2016-05-10 19:40
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<span style="font-size:18px;">思路:暴力出奇迹</span>
#include<bits\stdc++.h> using namespace std; const int maxn =5005; int a[maxn]; int vis[maxn]; int ans[maxn]; int main() { int n; scanf("%d",&n); for (int i = 1;i<=n;i++) scanf("%d",&a[i]); for (int i = 1;i<=n;i++) { memset(vis,0,sizeof(vis)); int ans1 = 0; int ans2 = 0; for (int j = i;j<=n;j++) { vis[a[j]]++; if(ans1<vis[a[j]] || (ans1==vis[a[j]])&&a[j]<ans2) { ans1=vis[a[j]]; ans2=a[j]; } ans[ans2]++; } } for (int i = 1;i<=n;i++) printf("%d ",ans[i]); printf("\n"); }
Description
Bear Limak has n colored balls, arranged in one long row. Balls are numbered 1 through n,
from left to right. There are n possible colors, also numbered 1 through n.
The i-th ball has color ti.
For a fixed interval (set of consecutive elements) of balls we can define a dominant color. It's a color occurring the biggest number of times in the interval. In case of a tie between some colors, the one with the
smallest number (index) is chosen as dominant.
There are
non-empty intervals in total. For each color, your task is to count the number
of intervals in which this color is dominant.
Input
The first line of the input contains a single integer n (1 ≤ n ≤ 5000) — the number of balls.
The second line contains n integers t1, t2, ..., tn (1 ≤ ti ≤ n)
where ti is the color of the i-th ball.
Output
Print n integers. The i-th of them should be equal to the number of intervals where i is
a dominant color.
Sample Input
Input
4 1 2 1 2
Output
7 3 0 0
Input
3 1 1 1
Output
6 0 0
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