This CF is really funny. . .
Because I got up at 7 o'clock in the morning, I had not rested for 17 hours by the time I did CF, plus the 5-hour game at noon.
My mind is very unclear. When I was doing the first question, I almost read it as finding the maximum sum of fields. Then I discovered it was a body of water and quickly jumped out.
Then I started reading question B. I didn’t understand it the first time, and my brain couldn’t stand it anymore. Then suddenly a certain group said that D is a water question.
I took a look at D. Go ahead, the question meaning of D is so simple. . . . So, I was thinking hard. . . . . Until almost 1 o'clock
, there was still no result. . . At this point I felt like I couldn't do it anymore. . I wanted to give up on D, so I went to see B again. After reading the question carefully,
I discovered that question B is the real water question. . Feeling depressed for a while. .
Question A:
You can violently enumerate the intervals, and then remove a few numbers by enumeration.
When counting, you must first remove the smallest number, and then bring in the largest number.
#include<stdio.h>#include<string.h>#include<algorithm>#include<iostream>#include<vector>using namespace std;#define maxn 220000#define mem(a,b) memset(a,b,sizeof(a))int a[222];vector<int>vec;vector<int>vecc;int main(){ int n,m,ans,i,j,k; while(~scanf("%d%d",&n,&m)) { for(i=1;ij)vecc.push_back(a[k]); } sort(vec.begin(),vec.end()); sort(vecc.begin(),vecc.end()); int len=vec.size(); ans=max(ans,p); for(k=1;k <br> Question B: <p></p> <p>If you study this question carefully, you will find that if you want to become legal, then any two lines or Both columns are the same or opposite states. </p> <p> Then if m is less than 10, we will enumerate the status of the first row. </p> <p>If m is greater than 10, we enumerate which columns have not been changed. </p> <p></p> <pre name="code" class="sycode">#include <cmath>#include <cstdio>#include <cstdlib>#include <iostream>#include <algorithm>#include <cstring>#include<map>using namespace std;#define N 251000#define maxn 110000#define LL __int64int maps[220][220];int c[220];int r[220];int dp[220];int num[220][2];int number_1(int x){ x=(x& 0x55555555)+((x>>1)& 0x55555555); x=(x& 0x33333333)+((x>>2)& 0x33333333); x=(x& 0x0F0F0F0F)+((x>>4)& 0x0F0F0F0F); x=(x& 0x00FF00FF)+((x>>8)& 0x00FF00FF); x=(x& 0x0000FFFF)+((x>>16)& 0x0000FFFF); return x;}void dos(int n,int m,int ks){ int ans=99999; int i,j,k; for(k=0;k <br> <br> <p></p> <p><br> </p> <p><br> </p> <p><br> </p> <p><br> </p> <p><br> </p> <p><br> </p> </map></cstring></algorithm></iostream></cstdlib></cstdio></cmath>

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