网易雷火3.26笔试
1，2，3题a了，第4题 用了二分+bfs 超时了 过了16%
第一题
#include<bits/stdc++.h>
using namespace std;
int n,m,x,y;
int a[105][105];
int main()
{
cin>>n>>m;
cin>>x>>y;
int ans=0;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=m;j++)
{
cin>>a[i][j];
if(x==i&&j==y)ans+=1;
else ans+=a[i][j];
}
}
cout<<ans<<endl;
return 0;
} 第二题 #include<bits/stdc++.h>
using namespace std;
int t,n;
int a[10],b[10],num1[10],num2[10],ans[10]={1,15000,8000,300,150,40,20,6,4,2};
map<int,int>m1,m2;
int fun()
{
if(num1[5])return 1;
if(num2[5])
{
if((a[0]+1)==a[1]&&(a[0]+2)==a[2]&&(a[0]+3)==a[3]&&(a[0]+4)==a[4])return 2;
}
if(num2[5])return 3;
if(num1[4])return 4;
if(num1[3]&&num1[2])return 5;
if(n==5&&(a[0]+1)==a[1]&&(a[0]+2)==a[2]&&(a[0]+3)==a[3]&&(a[0]+4)==a[4])return 6;
if(num1[3])return 7;
if(num1[2]==2)return 8;
if(num1[2]==1)return 9;
return 0;
}
int main()
{
while(cin>>t)
{
while(t--)
{
m1.clear();
m2.clear();
memset(num1,0,sizeof(num1));
memset(num2,0,sizeof(num2));
cin>>n;
for(int i=0;i<n;i++)
{
cin>>a[i];
if(m1.count(a[i])==0)
{
m1[a[i]]=1;
}
else m1[a[i]]++;
}
for(int i=0;i<n;i++)
{
char x;
cin>>x;
b[i]=x-'A';
if(m2.count(b[i])==0)
{
m2[b[i]]=1;
}
else m2[b[i]]++;
}
for(auto x:m1)
{
num1[x.second]++;
}
for(auto x:m2)
{
num2[x.second]++;
}
sort(a,a+n);
int k=fun();
cout<<ans[k]<<endl;
}
}
return 0;
} 第三题 #include<bits/stdc++.h>
using namespace std;
int n,m;
string s;
int fun(const char s)
{
if(s<='Z'&&s>='A')return 0;
if(s<='z'&&s>='a')return 0;
return 1;
}
int main()
{
cin>>n>>m;
getchar();
getline(cin,s);
stringstream ss;
ss<<s;
string str;
string ans="";
vector<string>v;
ss>>ans;
while(ss>>str)
{
int k=ans.size()+str.size()+1;
int f=fun(str[str.size()-1]);
if(k<=n||ans.size()+1<n&&k<=n+m+f)ans=ans+" "+str;
else
{
v.push_back(ans);
ans=str;
}
}
if(ans.size()>0)v.push_back(ans);
cout<<v.size()<<endl;
for(auto x:v)cout<<x<<endl;
return 0;
}
