제출 #133249

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
133249		dantoh000	즐거운 사진 수집 (JOI13_collecting)	C++14	100 / 100	1536 ms	61944 KiB

collecting

#include <bits/stdc++.h>
using namespace std;
int n,q;
struct node{
    int h;
    vector<int> a;
    vector<int> ct;
    node(int _h){
        h = _h;
        a = vector<int>((1<<(n+1))+1,0);
        ct = vector<int>(n+1,0);
    }
    void up(int x){
        int cur = n-1;
        x += (1<<n)-1;
        a[x] ^= 1;
        x >>= 1;
        while (x){
            if (a[x] == 2) ct[cur]--;
            //printf("%d depends %d %d\n",x,a[x<<1],a[(x<<1)+1]);
            if (a[x<<1] == a[(x<<1) + 1]) a[x] = a[x<<1];
            else a[x] = 2;
            if (a[x] == 2) ct[cur]++;
            x >>= 1;
            cur--;
        }
    }
}*rx, *ry;
int main(){
    scanf("%d%d",&n,&q);
    rx = new node(n), ry = new node(n);
    for (int i = 0; i < q; i++){
        int a, b;
        scanf("%d%d",&a,&b);
        if (a == 0){
            rx->up(b);
        }
        else ry->up(b);
        long long ans = 0;
        for (int i = 0; i < n; i++){
            //printf("size %d %lld\n",i,-1ll*rx->ct[i]*ry->ct[i]+(1ll<<i)*(rx->ct[i]+ry->ct[i]));
            ans -= 1ll*rx->ct[i]*ry->ct[i]-(1ll<<i)*(rx->ct[i]+ry->ct[i]);
        }
        printf("%lld\n",(ans<<2) + 1);
    }
}

컴파일 시 표준 에러 (stderr) 메시지

collecting.cpp: In function 'int main()':
collecting.cpp:30:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&q);
     ~~~~~^~~~~~~~~~~~~~
collecting.cpp:34:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&a,&b);
         ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 70 / 70