记录编号 |
309523 |
评测结果 |
AAAAAAAAAA |
题目名称 |
数列操作C |
最终得分 |
100 |
用户昵称 |
sxysxy |
是否通过 |
通过 |
代码语言 |
C++ |
运行时间 |
0.258 s |
提交时间 |
2016-09-19 21:31:23 |
内存使用 |
7.16 MiB |
显示代码纯文本
#include <cstdio>
#include <cstring>
#include <string>
#include <cstdarg>
#include <vector>
#include <list>
#include <functional>
#include <map>
using namespace std;
typedef long long LL;
LL fast_read()
{
LL r;
char c;
bool sig = false;
while(c = getchar())
{
if(c >= '0' && c <= '9')
{
r = c^0x30;
break;
}else if(c == '-')
sig = true;
}
while(isdigit(c = getchar()))
r = (r<<3)+(r<<1)+(c^0x30);
if(sig)return -r;
return r;
}
#define MAXN 100002
struct node
{
int l, r, ls ,rs;
LL sum;
LL lazyv;
void calc(LL d)
{
sum += d * (r-l+1);
}
}ns[MAXN<<1];
LL data[MAXN];
int root = 1;
int last = root;
void pushup(node &d)
{
d.sum = ns[d.ls].sum + ns[d.rs].sum;
}
int build(int l, int r)
{
if(l > r)return 0;
int cur = last++;
node &d = ns[cur];
d.l = l;
d.r = r;
d.lazyv = 0;
d.sum = 0;
if(l == r)
d.sum = data[l];
else
{
int m = (l+r)>>1;
if(l <= m)
{
d.ls = build(l, m);;
d.rs = build(m+1, r);
pushup(d);
}
}
return cur;
}
void pushdown(node &d)
{
ns[d.ls].lazyv += d.lazyv;
ns[d.ls].calc(d.lazyv);
ns[d.rs].lazyv += d.lazyv;
ns[d.rs].calc(d.lazyv);
d.lazyv = 0;
}
void update(int c, int l, int r, LL v)
{
if(!c)return;
node &d = ns[c];
if(d.l == l && d.r == r)
{
d.lazyv += v;
d.calc(v);
}else
{
pushdown(d);
if(l >= ns[d.rs].l)
update(d.rs, l, r, v);
else if(r <= ns[d.ls].r)
update(d.ls, l, r, v);
else
{
update(d.ls, l, ns[d.ls].r, v);
update(d.rs, ns[d.rs].l, r, v);
}
pushup(d);
}
}
LL query(int c, int l, int r)
{
if(!c)return 0;
node &d = ns[c];
if(d.l == l && d.r == r)
{
return d.sum;
}else
{
pushdown(d);
if(l >= ns[d.rs].l)
return query(d.rs, l, r);
else if(r <= ns[d.ls].r)
return query(d.ls, l, r);
else
return query(d.ls, l, ns[d.ls].r) + query(d.rs, ns[d.rs].l, r);
}
}
void clear(int n)
{
while(n--)getchar();
}
int main()
{
freopen("shuliec.in", "r", stdin);
freopen("shuliec.out", "w", stdout);
int n;
n = fast_read();
for(int i = 1; i <= n; i++)
data[i] = fast_read();
build(1, n);
int k = fast_read();
while(k--)
{
char c;
while(c = getchar())
{
if(c == 'S' || c == 'A')
break;
}
clear(2);
int a1, a2;
LL a3;
switch(c)
{
case 'S':
a1 = (int)fast_read();
a2 = (int)fast_read();
printf("%lld\n", query(1, a1, a2));
break;
case 'A':
a1 = (int)fast_read();
a2 = (int)fast_read();
a3 = fast_read();
update(1, a1, a2, a3);
break;
}
}
return 0;
}