高一下二掉考试

“掉”是故意的

只能说， 菜是原罪，18分过两个样例可能就是实力，还需要在历练，不管是心态还是技巧

不过还是有些需要注意的，在改题的时候收获的

T3少打了4个字母\(else\)导致我调了5节课，顺便练了一波对拍，其实也不是很亏，学了对拍长了教训

现在来看其实除了T2的投射技巧都是板子题，投射技巧会体现在线性dp博客中

顺便把对拍板子搞过来，防止丢失
\(Upd6.4:\)更新了对拍板子

#include <cstdio>
#include <cstring>
#include <algorithm>
#define R register int
#define printf Ruusupuu = printf 
#define int long

using namespace std ;
typedef long double D ;
typedef long long L ;
typedef unsigned long long G ;
const int N = 1e5 + 10 ;
const int M = 131 ;
int Ruusupuu , n ;

inline int read(){
	int w = 0 ; bool fg = 0 ; char ch = getchar() ;
	while( ch < '0' || ch > '9' ) fg |= ( ch == '-' ) , ch = getchar() ;
	while( ch >= '0' && ch <= '9' ) w = ( w << 1 ) + ( w << 3 ) + ( ch - '0' ) , ch = getchar() ;
	return fg ? -w : w ;
}
 
void sc(){
	system( "g++ a.cpp -o a && g++ std.cpp -o std && g++ rand.cpp -o rand" ) ;
}

void work(){
	G cnt = 0 ;
	while( 1 ){
		printf( "%llu " , cnt ++ ) ;
		system( "./rand > test.in" ) ;
		system( "./a < test.in > my.out && ./std < test.in > std.out" ) ;
		if( system( "diff my.out std.out" ) ) { printf( "WA\n" ) ; break ; }
		else printf( "AC\n" ) ;  
	}
}

signed main(){
	sc() ;
	work() ;
	return 0 ;
}

随机数据函数

#include <bits/stdc++.h>
#define R register int

using namespace std ;
typedef long long L ;
const int N = 10 ;

inline int read(){
	int w = 0 ; bool fg = 0 ; char ch = getchar() ;
	while( ch < '0' || ch > '9' ) fg |= ( ch == '-' ) , ch = getchar() ;
	while( ch >= '0' && ch <= '9' ) w = ( w << 1 ) + ( w << 3 ) + ( ch - '0' ) , ch = getchar() ;
	return fg ? -w : w ;
}

int random( int n ){
	int h = ( long long ) rand() * rand() % n ;
	while( h <= 0 ) 
	h = random( n ) ;
	return h ; 
}

int di( int n , int x ){
	int d = random( n ) ;
	while( x + d > n || d <= 0 )
	d = random( n ) ;
	return d ;
}

void work(){
	freopen( "rand.txt" , "w" , stdout ) ;
	srand( (unsigned) time(0) ) ;
	int n = 10 , m = 5 ;
	printf( "%d %d\n" , n , m ) ;
	for( R i = 1 ; i <= m ; i ++ ){
		int k = ( random( 10000 ) % 3  == 1 ) ? 2 : 1 ; 
		printf( "%d " , k ) ;
		if( k == 1 ) { int x = random( n ) ; printf( "%d\n" , x ) ;	} 
		else { int x = random( n ) , d = di( n , x ) ; printf( "%d %d\n" , x , d ) ; }
	}
}

signed main(){
//	sc() ;
	work() ;
	return 0 ;
}