/ SB域 /

记录详情

Accepted

/in/foo.cc: In function 'int main()':
/in/foo.cc:72:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i=1;i<=n;i++)
  ^~~
/in/foo.cc:77:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   for (int i=1;i<=n;i++)
   ^~~
/in/foo.cc:77:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
/in/foo.cc:80:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    char opt;
    ^~~~
# 状态 耗时 内存占用
#1 Accepted 681ms 299.324 MiB

代码

# include<bits/stdc++.h>
# define int long long
using namespace std;
const int MAXN=3005;
int a[MAXN][MAXN],d[MAXN][MAXN];
int n,m;
inline int read()
{
    int X=0,w=0;char c=0;
    while (!(c>='0'&&c<='9')) w|=c=='-',c=getchar();
    while ((c>='0'&&c<='9')) X=(X<<1)+(X<<3)+(c^48),c=getchar();
    return w?-X:X;
}
inline void write(int x)
{
    if (x<0) { putchar('-'); x=-x;}
    if (x>9) write(x/10);
    putchar('0'+x%10);
}
inline void writeln(int x){write(x);putchar('\n');}
struct Tree{
	int c[MAXN][MAXN];
	Tree(){ memset(c,0,sizeof(c));}
	inline void update(int x,int y,int z){
		for (int i=x;i<=n;i+=i&(-i))
		 for (int j=y;j<=m;j+=j&(-j)){
		 	c[i][j]+=z;
		 }
	}	
}T1,T2,T3,T4;
# define A (x+1)
# define B (y+1)
inline int ask(int x,int y){
	int ret=0;
	for (int i=x;i;i-=i&(-i))
	 for (int j=y;j;j-=j&(-j))
	  ret+=A*B*T1.c[i][j]-B*T2.c[i][j]-A*T3.c[i][j]+T4.c[i][j];
	return ret;  
}
inline void add(int x,int y,int val){
	T1.update(x,y,val);   T2.update(x,y,val*x);
	T3.update(x,y,val*y); T4.update(x,y,val*x*y);
}
inline void work1()
{
	int x1=read(),y1=read(),x2=read(),y2=read();
	int ans=ask(x2,y2)-ask(x2,y1-1)-ask(x1-1,y2)+ask(x1-1,y1-1);
	writeln(ans);
}
inline void work2()
{
	int x1=read(),y1=read(),x2=read(),y2=read(),d=read();
	add(x1,y1,d); add(x1,y2+1,-d);
	add(x2+1,y1,-d); add(x2+1,y2+1,d);
}
inline void work3()
{
	int x1=read(),y1=read(),x2=read(),y2=read(),d=read(); d=-d;
	add(x1,y1,d); add(x1,y2+1,-d);
	add(x2+1,y1,-d); add(x2+1,y2+1,d);
}
inline void work4()
{
	int x1=read(),y1=read();
	int x2=x1,y2=y1;
	int ans=ask(x2,y2)-ask(x2,y1-1)-ask(x1-1,y2)+ask(x1-1,y1-1);
	writeln(ans);
}
signed main()
{
	n=read();m=read();
	for (int i=1;i<=n;i++)
	 for (int j=1;j<=m;j++) {
	 	a[i][j]=read();
		d[i][j]=a[i][j]-a[i-1][j]-a[i][j-1]+a[i-1][j-1];  
	 }
	 for (int i=1;i<=n;i++)
	  for (int j=1;j<=m;j++)
	  	add(i,j,d[i][j]);
	  char opt;
	  while (true) {
	  	cin>>opt;
	  	switch (opt) {
	  		case 'Q':work1();break;
			case 'A':work2();break;
			case 'D':work3();break;
			case 'F':work4();break;
			case 'E':goto exit;break;  	
		}
	  }
	  exit:;
	return 0;
} 

信息

递交者
类型
递交
题目
U50446 二维数列
题目数据
下载
语言
C++
递交时间
2018-11-04 21:20:45
评测时间
2018-11-04 21:20:45
评测机
分数
100
总耗时
681ms
峰值内存
299.324 MiB