답안 #26242 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
26242	2017-06-28T13:22:12 Z	카제비(#1106, kajebiii)	Snowy Roads (JOI16_snowy)	C++14	100 / 100	22 ms	4228 KB

Anya
Boris

#include "Anyalib.h"

#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
#define REPO(i,n) for(int (i)=1; (i)<=(int)(n); (i)++)
#define SZ(v) ((int)(v).size())
#define ALL(v) (v).begin(),(v).end()
#define one first
#define two second
typedef long long ll;
typedef pair<int, int> pi;
const int INF = 0x3f2f1f0f;
const ll LINF = 1ll * INF * INF;

const int MAX_N = 1e3 + 50;

static vector<pi> Ed[MAX_N];
static int N;

static pi Ix[MAX_N], Nr[MAX_N];
static int IN;

static int dfs(int v, int p) {
    for(pi &t : Ed[v]) {
        int w, ix; tie(w, ix) = t;
        if(w != p) {
            int st = IN;
            Nr[st] = pi(ix, +1); IN++;
            dfs(w, v);
            int en = IN;
            Nr[en] = pi(ix, -1); IN++;
            Ix[ix] = pi(st, en);
        }
    }
}
void InitAnya(int n, int a[], int b[]) {
    N = n;
    for(int i=0; i+1<n; i++) {
        Ed[a[i]].push_back(pi(b[i], i));
        Ed[b[i]].push_back(pi(a[i], i));
    }
    dfs(0, -1);
    return;
}

static int Sum[MAX_N];
void Anya(int C[]) {
    for(int i=0; i<IN/20*20+40; i++) 
        Sum[i] = 0;
    for(int i=0; i+1<N; i++) {
        int st, en; tie(st, en) = Ix[i];
        if(C[i] == 0) continue;
        Sum[st]++; Sum[en]--;
    }
    for(int i=1; i<IN/20*20+40; i++) {
        Sum[i] += Sum[i-1];
//        printf("Sum[%d] = %d\n", i, Sum[i]);
    }
    for(int i=0; i<N-1; i++)
        Save(i, C[i]);
    for(int i=1; i<=IN/20; i++) {
        int cnt[10] = {0, };
        int val = Sum[i*20-1];
//        printf("send : %d -> %d\n", i, val);
        for(int k=0; k<10; k++) {
            cnt[k] = val & 1;
            val >>= 1;
        }
        for(int k=0; k<10; k++) {
//            printf("save at (%d) %d is %d\n", i, 500 + 10 * (i-1) + k, cnt[k]);
            Save(500 + 10 * (i-1) + k, cnt[k]);
        }
    }
}

#include "Borislib.h"

#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
#define REPO(i,n) for(int (i)=1; (i)<=(int)(n); (i)++)
#define SZ(v) ((int)(v).size())
#define ALL(v) (v).begin(),(v).end()
#define one first
#define two second
typedef long long ll;
typedef pair<int, int> pi;
const int INF = 0x3f2f1f0f;
const ll LINF = 1ll * INF * INF;

const int MAX_N = 1e3 + 50;

static vector<pi> Ed[MAX_N];
static int N;

static pi Ix[MAX_N], Nr[MAX_N];
static int IN, ixP[MAX_N];

static int dfs(int v, int p) {
    for(pi &t : Ed[v]) {
        int w, ix; tie(w, ix) = t;
        if(w != p) {
            int st = IN;
            Nr[st] = pi(ix, +1); IN++;
            ixP[w] = ix;
            dfs(w, v);
            int en = IN;
            Nr[en] = pi(ix, -1); IN++;
            Ix[ix] = pi(st, en);
        }
    }
}
void InitBoris(int n, int a[] , int b[]) {
    N = n;
    for(int i=0; i+1<n; i++) {
        Ed[a[i]].push_back(pi(b[i], i));
        Ed[b[i]].push_back(pi(a[i], i));
    }
    dfs(0, -1);
//    for(int i=0; i<IN; i++) printf("%d %d\n", Nr[i].one, Nr[i].two); puts("");
    return;
}

int getG(int g) {
    if(g == 0) return 0;
    if(g > IN / 20) return 0;
    int res = 0;
    for(int k=9; k>=0; k--) {
        res *= 2;
        res += Ask(500 + 10 * (g-1) + k);
    }
    return res;
}
int getVal(int p) {
    if(p >= IN) return 0;
    int ix, t; tie(ix, t) = Nr[p];
//    printf("%d : %d\n", p, t * Ask(ix));
    return t * Ask(ix);
}
int Boris(int city) {
    int ix = Ix[ixP[city]].one;
//    printf("(line %d | %d)\n", ixP[city], ix);

    int ans = 0;
    if(ix - ix / 20 * 20 < 10) {
        ans = getG(ix / 20);
//        printf("left %d\n", ans);
        for(int i=ix/20*20; i<=ix; i++)
            ans += getVal(i);
    }else{
        ans = getG(ix / 20 + 1);
//        printf("right %d\n", ans);
        for(int i=ix+1; i < (ix/20 + 1) * 20; i++)
            ans -= getVal(i);
    }
//    printf("ans is %d\n", ans);
    return ans;
}

Compilation message

Anya.cpp: In function 'int dfs(int, int)':
Anya.cpp:38:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

Boris.cpp: In function 'int dfs(int, int)':
Boris.cpp:39:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	4228 KB	Output is correct
2	Correct	0 ms	4228 KB	Output is correct
3	Correct	0 ms	4228 KB	Output is correct
4	Correct	0 ms	4228 KB	Output is correct
5	Correct	3 ms	4228 KB	Output is correct
6	Correct	6 ms	4228 KB	Output is correct
7	Correct	9 ms	4228 KB	Output is correct
8	Correct	3 ms	4228 KB	Output is correct
9	Correct	9 ms	4228 KB	Output is correct
10	Correct	6 ms	4228 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	4228 KB	Output is correct
2	Correct	6 ms	4228 KB	Output is correct
3	Correct	9 ms	4228 KB	Output is correct
4	Correct	6 ms	4228 KB	Output is correct
5	Correct	9 ms	4228 KB	Output is correct
6	Correct	3 ms	4228 KB	Output is correct
7	Correct	6 ms	4228 KB	Output is correct
8	Correct	9 ms	4228 KB	Output is correct
9	Correct	6 ms	4228 KB	Output is correct
10	Correct	12 ms	4228 KB	Output is correct

Subtask #3
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	16 ms	4228 KB	Output is correct
2	Correct	12 ms	4228 KB	Output is correct
3	Correct	13 ms	4228 KB	Output is correct
4	Correct	16 ms	4228 KB	Output is correct
5	Correct	12 ms	4228 KB	Output is correct
6	Correct	16 ms	4228 KB	Output is correct
7	Correct	16 ms	4228 KB	Output is correct
8	Correct	16 ms	4228 KB	Output is correct
9	Correct	16 ms	4228 KB	Output is correct
10	Correct	9 ms	4228 KB	Output is correct
11	Correct	9 ms	4228 KB	Output is correct
12	Correct	12 ms	4228 KB	Output is correct
13	Correct	16 ms	4228 KB	Output is correct
14	Correct	16 ms	4228 KB	Output is correct
15	Correct	16 ms	4228 KB	Output is correct
16	Correct	12 ms	4228 KB	Output is correct
17	Correct	16 ms	4228 KB	Output is correct
18	Correct	16 ms	4228 KB	Output is correct
19	Correct	19 ms	4228 KB	Output is correct
20	Correct	16 ms	4228 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	4228 KB	Output is correct
2	Correct	16 ms	4228 KB	Output is correct
3	Correct	16 ms	4228 KB	Output is correct
4	Correct	19 ms	4228 KB	Output is correct
5	Correct	16 ms	4228 KB	Output is correct
6	Correct	12 ms	4228 KB	Output is correct
7	Correct	19 ms	4228 KB	Output is correct
8	Correct	16 ms	4228 KB	Output is correct
9	Correct	13 ms	4228 KB	Output is correct
10	Correct	16 ms	4228 KB	Output is correct
11	Correct	16 ms	4228 KB	Output is correct
12	Correct	15 ms	4228 KB	Output is correct
13	Correct	16 ms	4228 KB	Output is correct
14	Correct	16 ms	4228 KB	Output is correct
15	Correct	12 ms	4228 KB	Output is correct
16	Correct	16 ms	4228 KB	Output is correct
17	Correct	16 ms	4228 KB	Output is correct
18	Correct	19 ms	4228 KB	Output is correct
19	Correct	16 ms	4228 KB	Output is correct
20	Correct	19 ms	4228 KB	Output is correct
21	Correct	16 ms	4228 KB	Output is correct
22	Correct	19 ms	4228 KB	Output is correct
23	Correct	19 ms	4228 KB	Output is correct
24	Correct	16 ms	4228 KB	Output is correct
25	Correct	22 ms	4228 KB	Output is correct
26	Correct	16 ms	4228 KB	Output is correct
27	Correct	12 ms	4228 KB	Output is correct
28	Correct	19 ms	4228 KB	Output is correct
29	Correct	16 ms	4228 KB	Output is correct
30	Correct	19 ms	4228 KB	Output is correct
31	Correct	19 ms	4228 KB	Output is correct
32	Correct	16 ms	4228 KB	Output is correct
33	Correct	16 ms	4228 KB	Output is correct
34	Correct	12 ms	4228 KB	Output is correct
35	Correct	16 ms	4228 KB	Output is correct
36	Correct	19 ms	4228 KB	Output is correct
37	Correct	12 ms	4228 KB	Output is correct
38	Correct	12 ms	4228 KB	Output is correct
39	Correct	16 ms	4228 KB	Output is correct
40	Correct	12 ms	4228 KB	Output is correct
41	Correct	16 ms	4228 KB	Output is correct
42	Correct	12 ms	4228 KB	Output is correct
43	Correct	16 ms	4228 KB	Output is correct
44	Correct	16 ms	4228 KB	Output is correct
45	Correct	19 ms	4228 KB	Output is correct
46	Correct	16 ms	4228 KB	Output is correct
47	Correct	9 ms	4228 KB	Output is correct
48	Correct	16 ms	4228 KB	Output is correct
49	Correct	16 ms	4228 KB	Output is correct
50	Correct	13 ms	4228 KB	Output is correct

답안 #26242

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 5.0 / 5.0

Subtask #3 35.0 / 35.0

Subtask #4 45.0 / 45.0

Subtask #1
15.0 / 15.0

Subtask #2
5.0 / 5.0

Subtask #3
35.0 / 35.0

Subtask #4
45.0 / 45.0