oj.uz

Submission #337780

# Submission time Handle Problem Language Result Execution time Memory
337780 2020-12-21T15:40:53 Z beksultan04 Weighting stones (IZhO11_stones) C++14
100 / 100
 76 ms 7020 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin(),s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
const int N = 1e6+12,INF=1e9+7;
int pus[N];
pii der[N];
void push(int v,int l,int r){
    der[v].fr += pus[v];
    der[v].sc += pus[v];
    if (l != r){
        pus[v<<1]+=pus[v];
        pus[(v<<1)+1]+=pus[v];
    }
    pus[v]=0;
}


void update(int v,int l,int r,int ql,int qr,int x){
    push(v,l,r);
    if (ql > r || l > qr)ret ;
    if (ql <= l && r <= qr){
        pus[v]+=x;
        push(v,l,r);
        ret ;
    }
    int m = (l+r)>>1;
    update(v<<1,l,m,ql,qr,x);
    update((v<<1)+1,m+1,r,ql,qr,x);
    der[v].fr = min(der[v<<1].fr,der[(v<<1)+1].fr);
    der[v].sc = max(der[v<<1].sc,der[(v<<1)+1].sc);
}

main(){
    int n,i;
    scan1(n)
    i=n;
    while (i--){
        int a,b;
        scan2(a,b)
        if (b == 1){
            update(1,1,n,1,a,-1);
        }
        else {
            update(1,1,n,1,a,1);
        }
        if (der[1].fr >= 0){
            cout <<"<\n";
        }
        else if (der[1].sc <= 0){
            cout <<">\n";
        }
        else cout <<"?\n";
    }

}

Compilation message

stones.cpp:48:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   48 | main(){
      |      ^
stones.cpp: In function 'int main()':
stones.cpp:11:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   11 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
stones.cpp:50:5: note: in expansion of macro 'scan1'
   50 |     scan1(n)
      |     ^~~~~
stones.cpp:12:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 | #define scan2(a,b) scanf("%lld %lld",&a, &b);
      |                    ~~~~~^~~~~~~~~~~~~~~~~~~~
stones.cpp:54:9: note: in expansion of macro 'scan2'
   54 |         scan2(a,b)
      |         ^~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 236 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 6 ms 1132 KB Output is correct
11 Correct 43 ms 3820 KB Output is correct
12 Correct 76 ms 6892 KB Output is correct
13 Correct 66 ms 6892 KB Output is correct
14 Correct 67 ms 6892 KB Output is correct
15 Correct 66 ms 6912 KB Output is correct
16 Correct 76 ms 6892 KB Output is correct
17 Correct 69 ms 7020 KB Output is correct
18 Correct 67 ms 6892 KB Output is correct
19 Correct 65 ms 6892 KB Output is correct
20 Correct 65 ms 6912 KB Output is correct
21 Correct 70 ms 7020 KB Output is correct
22 Correct 72 ms 6892 KB Output is correct
23 Correct 68 ms 6892 KB Output is correct
24 Correct 66 ms 6892 KB Output is correct
25 Correct 65 ms 7020 KB Output is correct