ACM常用模板

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string>
#include <cstring>
#include <sstream>
#include <vector>
#include <set>
#include <list>
#include <stack>
#include <queue>
#include <cmath>
#include <map>
#define LL long long
#define MOD 1000000007
#define INF 0x3f3f3f3f
using namespace std;
const int MAXN = 1e5 + 10;

一、头文件

 1 #include<iostream>
 2 #include<cstdio>
 3 #include<algorithm>
 4 #include<cstring>
 5 #include<sstream>
 6 #include<vector>
 7 #include<stack>
 8 #include<queue>
 9 #include<cmath>
10 #include<map>
11 #define LL long long
12 #define N 1000100
13 #define MOD 1000000007
14 #define FOR(i,l,r) for(int i = (l);i<=l;i++)
15 #define INF 0x7fffffff
16 #define pb push_back
17 #define X first
18 #define Y second
19 using namespace std;

二、常用输入模板

1 while(scanf("%d%d",&n,&m) != EOF)

三、简化代码

FOR(i,1,n) scanf("%d",&a[i]);
FOR(i,1,k){
    //代码段 
}