feat: 添加P7151.cpp和P7514.cpp解题代码

添加两个编程题目的解答代码文件，分别处理矩阵输入和数组操作问题

src/11/26/P7151.cpp

@@ -0,0 +1,22 @@
+#include <cstdint>
+#include <iostream>
+#include <istream>
+#include <vector>
+using ll = int64_t;
+
+ll n,d;
+std::vector<std::vector<ll>> m;
+
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin.tie(nullptr);
+
+    std::cin>>n>>d;
+    m.resize(n+1,std::vector<ll>(n+1));
+    for(ll i=1;i<=n;i++){
+        for(ll j=1;j<=n;j++){
+            std::cin>>m[i][j];
+        }
+    }
+    
+}

src/11/26/P7514.cpp

@@ -0,0 +1,69 @@
+#include <algorithm>
+#include <cstdint>
+#include <cstdio>
+#include <iostream>
+#include <istream>
+#include <vector>
+using ll = int64_t;
+#define printf
+const ll inf=1e9+7;
+ll n,m,ans=inf;
+std::vector<ll> a,b,aa,bb,mm,lmax,rmin;
+
+#define pa(a)do {\
+        printf(#a"[]: ");\
+        for(ll i=1;i<=n;i++){\
+            printf("%lld ",a[i]);\
+        }\
+        printf("\n");\
+    }while(0)
+
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin.tie(nullptr);
+
+    std::cin>>n>>m;
+    a.resize(n+1);
+    aa.resize(n+1);
+    b.resize(n+1);
+    bb.resize(n+2);
+    mm.resize(n+2,inf);
+    lmax.resize(n+2);
+    rmin.resize(n+2,inf);
+
+    for(ll i=1;i<=n;i++)std::cin>>a[i];
+    for(ll i=1;i<=n;i++)std::cin>>b[i];
+
+    for(ll i=n;i>=1;i--){
+        mm[i]=std::min(mm[i+1],a[i]);
+    }
+    for(ll i=1;i<=n;i++){
+        lmax[i]=std::max(lmax[i-1],b[i]);
+    }
+    for(ll i=n;i>=1;i--){
+        rmin[i]=std::min(rmin[i+1],b[i]);
+    }
+    ll nmin=inf;
+    for(ll i=1;i<=n;i++){
+        nmin=std::min(nmin,b[i]);
+        aa[i]=std::min(nmin,mm[i+1]);
+    }
+    mm.assign(n+2,-inf);
+    for(ll i=1;i<=n;i++){
+        mm[i]=std::max(mm[i-1],a[i]);
+    }
+    ll nmax=-inf;
+    for(ll i=n;i>=1;i--){
+        nmax=std::max(nmax,b[i]);
+        bb[i]=std::max(nmax,mm[i-1]);
+    }
+    
+    for(ll i=0;i<=m;i++){
+        ans=std::min(ans,std::max(bb[n-(m-i)+1],lmax[i])-std::min(aa[i],rmin[n-(m-i)+1]));
+    }
+    pa(aa);
+    pa(bb);
+    pa(lmax);
+    pa(rmin);
+    std::cout<<ans<<"\n";
+}