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답안 #114348

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
114348 2019-06-01T03:14:56 Z onjo0127 Employment (JOI16_employment) C++11
100 / 100
 242 ms 13188 KB 
#include <bits/stdc++.h>
using namespace std;

struct query {
    int ty, a, b;
} B[200009];

vector<int> S;
int A[200009], C[200009], F[400009];

int f(int x) {
    return (int)S.size() - (lower_bound(S.begin(), S.end(), x) - S.begin());
}

void upd(int x, int y) { for(int i=x; i<=(int)S.size(); i+=(i&-i)) F[i] += y; }
int get(int x) {int s = 0; for(int i=x; i>=1; i-=(i&-i)) s += F[i]; return s; }

void update(int id, int nw) {
    upd(A[id], -C[id]);
    A[id] = nw;
    if(A[id-1] <= A[id] && A[id+1] < A[id]) C[id] = -1;
    else if(A[id-1] > A[id] && A[id+1] >= A[id]) C[id] = +1;
    else C[id] = 0;
    upd(A[id], C[id]);
}

int main() {
    int N, M; scanf("%d%d",&N,&M);
    for(int i=1; i<=N; i++) {
        scanf("%d",&A[i]);
        S.push_back(A[i]);
    } A[0] = A[N+1] = 1e9;
    for(int i=0; i<M; i++) {
        int t, a, b = -1; scanf("%d",&t);
        if(t == 1) {
            scanf("%d",&a);
            S.push_back(a);
        }
        else {
            scanf("%d%d",&a,&b);
            S.push_back(b);
        }
        B[i] = {t, a, b};
    }
    sort(S.begin(), S.end()); S.resize(unique(S.begin(), S.end()) - S.begin());
    for(int i=1; i<=N; i++) A[i] = f(A[i]);
    for(int i=0; i<M; i++) {
        if(B[i].ty == 1) B[i].a = f(B[i].a);
        else B[i].b = f(B[i].b);
    }
    for(int i=1; i<=N; i++) {
        if(A[i-1] <= A[i] && A[i+1] < A[i]) C[i] = -1;
        else if(A[i-1] > A[i] && A[i+1] >= A[i]) C[i] = +1;
        else C[i] = 0;
        upd(A[i], C[i]);
    }
    for(int i=0; i<M; i++) {
        if(B[i].ty == 1) printf("%d\n", get(B[i].a));
        else {
            int id = B[i].a, nw = B[i].b;
            update(id, nw);
            if(id != 1) update(id-1, A[id-1]);
            if(id != N) update(id+1, A[id+1]);
        }
    }
    return 0;
}

Compilation message

employment.cpp: In function 'int main()':
employment.cpp:28:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     int N, M; scanf("%d%d",&N,&M);
               ~~~~~^~~~~~~~~~~~~~
employment.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&A[i]);
         ~~~~~^~~~~~~~~~~~
employment.cpp:34:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int t, a, b = -1; scanf("%d",&t);
                           ~~~~~^~~~~~~~~
employment.cpp:36:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&a);
             ~~~~~^~~~~~~~~
employment.cpp:40:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d",&a,&b);
             ~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 412 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 4 ms 512 KB Output is correct
11 Correct 4 ms 512 KB Output is correct
12 Correct 4 ms 512 KB Output is correct
13 Correct 4 ms 512 KB Output is correct
14 Correct 4 ms 512 KB Output is correct
15 Correct 4 ms 512 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 4 ms 512 KB Output is correct
4 Correct 16 ms 1536 KB Output is correct
5 Correct 29 ms 2428 KB Output is correct
6 Correct 46 ms 3604 KB Output is correct
7 Correct 74 ms 5148 KB Output is correct
8 Correct 90 ms 6376 KB Output is correct
9 Correct 157 ms 10340 KB Output is correct
10 Correct 144 ms 9032 KB Output is correct
11 Correct 190 ms 11660 KB Output is correct
12 Correct 217 ms 12812 KB Output is correct
13 Correct 212 ms 12796 KB Output is correct
14 Correct 195 ms 12644 KB Output is correct
15 Correct 211 ms 12716 KB Output is correct
16 Correct 206 ms 13028 KB Output is correct
17 Correct 206 ms 12872 KB Output is correct
18 Correct 215 ms 12900 KB Output is correct
19 Correct 209 ms 13012 KB Output is correct
20 Correct 208 ms 13156 KB Output is correct

Subtask #3
60.0 / 60.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 412 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 4 ms 512 KB Output is correct
11 Correct 4 ms 512 KB Output is correct
12 Correct 4 ms 512 KB Output is correct
13 Correct 4 ms 512 KB Output is correct
14 Correct 4 ms 512 KB Output is correct
15 Correct 4 ms 512 KB Output is correct
16 Correct 4 ms 512 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 4 ms 512 KB Output is correct
19 Correct 16 ms 1536 KB Output is correct
20 Correct 29 ms 2428 KB Output is correct
21 Correct 46 ms 3604 KB Output is correct
22 Correct 74 ms 5148 KB Output is correct
23 Correct 90 ms 6376 KB Output is correct
24 Correct 157 ms 10340 KB Output is correct
25 Correct 144 ms 9032 KB Output is correct
26 Correct 190 ms 11660 KB Output is correct
27 Correct 217 ms 12812 KB Output is correct
28 Correct 212 ms 12796 KB Output is correct
29 Correct 195 ms 12644 KB Output is correct
30 Correct 211 ms 12716 KB Output is correct
31 Correct 206 ms 13028 KB Output is correct
32 Correct 206 ms 12872 KB Output is correct
33 Correct 215 ms 12900 KB Output is correct
34 Correct 209 ms 13012 KB Output is correct
35 Correct 208 ms 13156 KB Output is correct
36 Correct 3 ms 512 KB Output is correct
37 Correct 4 ms 512 KB Output is correct
38 Correct 4 ms 512 KB Output is correct
39 Correct 16 ms 1412 KB Output is correct
40 Correct 29 ms 2276 KB Output is correct
41 Correct 52 ms 3516 KB Output is correct
42 Correct 73 ms 4716 KB Output is correct
43 Correct 100 ms 6312 KB Output is correct
44 Correct 185 ms 10724 KB Output is correct
45 Correct 150 ms 8916 KB Output is correct
46 Correct 169 ms 9836 KB Output is correct
47 Correct 224 ms 12676 KB Output is correct
48 Correct 231 ms 12808 KB Output is correct
49 Correct 235 ms 12972 KB Output is correct
50 Correct 223 ms 12644 KB Output is correct
51 Correct 237 ms 12900 KB Output is correct
52 Correct 238 ms 13188 KB Output is correct
53 Correct 233 ms 12952 KB Output is correct
54 Correct 242 ms 13028 KB Output is correct
55 Correct 230 ms 13028 KB Output is correct