//https://www.instagram.com/_modwwe/
#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2")
#include<bits/stdc++.h>
//#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".ans","w",stdout)
#define pb push_back
#define checktime cerr << (double)clock() / CLOCKS_PER_SEC * 1000 << " ms";
using namespace std;
void phongbeo();
const int inf=-1e14;
const int mod2=1e9+7;
const int mod1=998244353;
struct icd
{
long double a;
int b;
};
struct ib
{
int a;
int b;
};
struct ic
{
int a,b,c;
};
struct id
{
int a,b,c,d;
};
struct ie
{
int a,b,c,d,e;
};
int n,m,s1,s2,s4,s3,sf,k,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,s33,dem3,l,r,mid;
int i,s10,s12;
int kk;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
// fin(task),fou(task);
#endif
NHP
/// cin>>s1;
// modwwe
phongbeo();
}
int a[200001];
struct CI{
int a,b;
int f[2][2];
};
int fe(CI a)
{
return max({a.f[0][0],a.f[0][1],a.f[1][0],a.f[1][1]});
}
struct IT{
CI t[800001];
int t2[800001];
CI mer(CI a,CI b)
{
CI c;
for(int j=0;j<=1;j++)
for(int z=0;z<=1;z++)
c.f[j][z]=inf;
for(int j=0;j<=1;j++)
for(int z=0;z<=1;z++)
if(a.f[j][z]!=inf)
for(int j2=0;j2<=1;j2++)
for(int z2=0;z2<=1;z2++)
if(b.f[j2][z2]!=inf)
{
c.f[j][z2]=max(c.f[j][z2],a.f[j][z]+b.f[j2][z2]);
if(a.b<b.a&&z!=j2&&z==1)
c.f[j][z2]=max(c.f[j][z2],a.f[j][z]+b.f[j2][z2]+b.a-a.b);
if(a.b>b.a&&z!=j2&&z==0)
c.f[j][z2]=max(c.f[j][z2],a.f[j][z]+b.f[j2][z2]+a.b-b.a);
}
c.a=a.a;
c.b=b.b;
return c;
}
void build(int node,int l,int r)
{
if(l==r)
{
for(int j=0;j<=1;j++)
for(int z=0;z<=1;z++)
t[node].f[j][z]=inf;
for(int j=0;j<=1;j++)
t[node].f[j][1-j]=0;
t[node].a=a[l];
t[node].b=a[l];
return;
}
int mid=l+r>>1;
build(node<<1,l,mid);
build(node<<1|1,mid+1,r);
t[node]=mer(t[node<<1],t[node<<1|1]);
// cout<<fe(t[node])<<" "<<l<<" "<<r<<" "<<t[node].f[0][0],down
}
void ff(int x)
{
for(int i=x*2;i<=x*2+1;i++)
t2[i]+=t2[x],
t[i].a+=t2[x],
t[i].b+=t2[x];
t2[x]=0;
}
void upd(int node,int l,int r,int l1,int r1,int x)
{
if(l>r1||r<l1) return;
if(l>=l1&&r<=r1)
{
t[node].a+=x;
t[node].b+=x;
t2[node]+=x;
return;
}
if(t2[node]!=0) ff(node);
int mid=l+r>>1;
upd(node<<1,l,mid,l1,r1,x);
upd(node<<1|1,mid+1,r,l1,r1,x);
t[node]=mer(t[node<<1],t[node<<1|1]);
}
}st;
void phongbeo()
{
cin>>n>>m;
for(int i=1;i<=n;i++)
cin>>a[i];
st.build(1,1,n);
for(int i=1;i<=m;i++)
{cin>>l>>r>>k;
st.upd(1,1,n,l,r,k);
cout<<fe(st.t[1]),down
}
}
Compilation message
Main.cpp:20:15: warning: overflow in conversion from 'double' to 'int' changes value from '-1.0e+14' to '-2147483648' [-Woverflow]
20 | const int inf=-1e14;
| ^~~~~
Main.cpp:51:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
51 | main()
| ^~~~
Main.cpp: In member function 'void IT::build(int, int, int)':
Main.cpp:110:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
110 | int mid=l+r>>1;
| ~^~
Main.cpp: In member function 'void IT::upd(int, int, int, int, int, int)':
Main.cpp:135:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
135 | int mid=l+r>>1;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
