oj.uz

Submission #333893

# Submission time Handle Problem Language Result Execution time Memory
333893 2020-12-08T02:27:20 Z juggernaut Simple game (IZhO17_game) C++14
100 / 100
 424 ms 19564 KB 
#include<bits/stdc++.h>
using namespace std;
const int mx=1e6;
int n,q,h[100005],tree[mx<<2],flag[mx<<2];
void push(int v,int l,int r){
    if(l!=r){
        flag[v<<1]+=flag[v];
        flag[v<<1|1]+=flag[v];
    }
    tree[v]+=flag[v]*(r-l+1);
    flag[v]=0;
}
void update(int v,int l,int r,int ql,int qr,int val){
    if(qr<l||r<ql)return;
    if(ql<=l&&r<=qr){
        flag[v]+=val;
        return;
    }
    push(v,l,r);
    int mid=(l+r)>>1;
    update(v<<1,l,mid,ql,qr,val);
    update(v<<1|1,mid+1,r,ql,qr,val);
    tree[v]=tree[v<<1]+tree[v<<1|1];
}
int get(int v,int l,int r,int pos){
    if(pos<l||pos>r)return 0;
    push(v,l,r);
    if(l==r)return tree[v];
    int mid=(l+r)>>1;
    return get(v<<1,l,mid,pos)+get(v<<1|1,mid+1,r,pos);
}
void upd(int l,int r,int val){
    if(l>r)swap(l,r);
    update(1,1,mx,l,r,val);
}
int main(){
    scanf("%d%d",&n,&q);
    for(int i=1;i<=n;i++)scanf("%d",&h[i]);
    for(int i=2;i<=n;i++)upd(h[i-1],h[i],1);
    while(q--){
        int type;
        scanf("%d",&type);
        if(type&1){
            int pos,val;
            scanf("%d%d",&pos,&val);
            if(pos>1)upd(h[pos],h[pos-1],-1);
            if(pos<n)upd(h[pos],h[pos+1],-1);
            h[pos]=val;
            if(pos>1)upd(h[pos],h[pos-1],1);
            if(pos<n)upd(h[pos],h[pos+1],1);
        }else{
            int x;
            scanf("%d",&x);
            printf("%d\n",get(1,1,mx,x));
        }
    }
}

Compilation message

game.cpp: In function 'int main()':
game.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   37 |     scanf("%d%d",&n,&q);
      |     ~~~~~^~~~~~~~~~~~~~
game.cpp:38:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   38 |     for(int i=1;i<=n;i++)scanf("%d",&h[i]);
      |                          ~~~~~^~~~~~~~~~~~
game.cpp:42:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   42 |         scanf("%d",&type);
      |         ~~~~~^~~~~~~~~~~~
game.cpp:45:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   45 |             scanf("%d%d",&pos,&val);
      |             ~~~~~^~~~~~~~~~~~~~~~~~
game.cpp:53:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   53 |             scanf("%d",&x);
      |             ~~~~~^~~~~~~~~

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 12 ms 13164 KB Output is correct
3 Correct 12 ms 12908 KB Output is correct
4 Correct 12 ms 13036 KB Output is correct
5 Correct 12 ms 13164 KB Output is correct
6 Correct 12 ms 13056 KB Output is correct
7 Correct 8 ms 12780 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 12 ms 13164 KB Output is correct
3 Correct 12 ms 12908 KB Output is correct
4 Correct 12 ms 13036 KB Output is correct
5 Correct 12 ms 13164 KB Output is correct
6 Correct 12 ms 13056 KB Output is correct
7 Correct 8 ms 12780 KB Output is correct
8 Correct 93 ms 1388 KB Output is correct
9 Correct 234 ms 19352 KB Output is correct
10 Correct 231 ms 19436 KB Output is correct
11 Correct 88 ms 1772 KB Output is correct
12 Correct 130 ms 3308 KB Output is correct
13 Correct 118 ms 19180 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 12 ms 13164 KB Output is correct
3 Correct 12 ms 12908 KB Output is correct
4 Correct 12 ms 13036 KB Output is correct
5 Correct 12 ms 13164 KB Output is correct
6 Correct 12 ms 13056 KB Output is correct
7 Correct 8 ms 12780 KB Output is correct
8 Correct 93 ms 1388 KB Output is correct
9 Correct 234 ms 19352 KB Output is correct
10 Correct 231 ms 19436 KB Output is correct
11 Correct 88 ms 1772 KB Output is correct
12 Correct 130 ms 3308 KB Output is correct
13 Correct 118 ms 19180 KB Output is correct
14 Correct 419 ms 19436 KB Output is correct
15 Correct 424 ms 19564 KB Output is correct
16 Correct 414 ms 19308 KB Output is correct
17 Correct 418 ms 19436 KB Output is correct
18 Correct 423 ms 19308 KB Output is correct