oj.uz

Submission #68878

# Submission time Handle Problem Language Result Execution time Memory
68878 2018-08-18T21:35:34 Z duality Golf (JOI17_golf) C++11
30 / 100
 279 ms 94116 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;

int dx[4] = {-1,0,1,0};
int dy[4] = {0,-1,0,1};
int A[100000],B[100000],C[100000],D[100000];
vi xLines,yLines;
int diff[2002][2002];
int dist[2002][2002][4];
deque<pair<pii,int> > Q;
int main() {
    int i;
    int N,S,T,U,V;
    scanf("%d %d %d %d %d",&S,&T,&U,&V,&N);
    xLines.pb(S),yLines.pb(T);
    xLines.pb(U),yLines.pb(V);
    for (i = 0; i < N; i++) {
        scanf("%d %d %d %d",&A[i],&B[i],&C[i],&D[i]);
        xLines.pb(A[i]),xLines.pb(B[i]);
        yLines.pb(C[i]),yLines.pb(D[i]);
    }
    sort(xLines.begin(),xLines.end());
    xLines.resize(unique(xLines.begin(),xLines.end())-xLines.begin());
    sort(yLines.begin(),yLines.end());
    yLines.resize(unique(yLines.begin(),yLines.end())-yLines.begin());

    int j;
    S = lower_bound(xLines.begin(),xLines.end(),S)-xLines.begin();
    T = lower_bound(yLines.begin(),yLines.end(),T)-yLines.begin();
    U = lower_bound(xLines.begin(),xLines.end(),U)-xLines.begin();
    V = lower_bound(yLines.begin(),yLines.end(),V)-yLines.begin();
    for (i = 0; i < N; i++) {
        A[i] = lower_bound(xLines.begin(),xLines.end(),A[i])-xLines.begin();
        B[i] = lower_bound(xLines.begin(),xLines.end(),B[i])-xLines.begin();
        C[i] = lower_bound(yLines.begin(),yLines.end(),C[i])-yLines.begin();
        D[i] = lower_bound(yLines.begin(),yLines.end(),D[i])-yLines.begin();
        diff[A[i]][C[i]]++,diff[A[i]][D[i]]--,diff[B[i]][C[i]]--,diff[B[i]][D[i]]++;
    }
    for (i = 0; i < xLines.size(); i++) {
        for (j = 0; j < yLines.size(); j++) {
            if (i > 0) diff[i][j] += diff[i-1][j];
            if (j > 0) diff[i][j] += diff[i][j-1];
            if ((i > 0) && (j > 0)) diff[i][j] -= diff[i-1][j-1];
        }
    }
    memset(dist,-1,sizeof(dist));
    for (i = 0; i < 4; i++) {
        dist[S][T][i] = 0;
        Q.pb(mp(mp(S,T),i));
    }
    while (!Q.empty()) {
        int x = Q.front().first.first;
        int y = Q.front().first.second;
        int d = Q.front().second;
        Q.pop_front();

        if ((x == U) && (y == V)) {
            printf("%d\n",dist[x][y][d]+1);
            return 0;
        }
        for (i = 0; i < 4; i++) {
            int xx = x+dx[i];
            int yy = y+dy[i];
            int yes = 1;
            if ((i & 1) && diff[xx][min(y,yy)] && (xx > 0) && diff[xx-1][min(y,yy)]) yes = 0;
            if (!(i & 1) && diff[min(x,xx)][yy] && (yy > 0) && diff[min(x,xx)][yy-1]) yes = 0;
            if ((xx >= 0) && (xx < xLines.size()) && (yy >= 0) && (yy < yLines.size()) && yes) {
                if (i == d) {
                    if ((dist[xx][yy][i] == -1) || (dist[x][y][d] < dist[xx][yy][i])) {
                        dist[xx][yy][i] = dist[x][y][d];
                        Q.push_front(mp(mp(xx,yy),i));
                    }
                }
                else {
                    if ((dist[xx][yy][i] == -1) || (dist[x][y][d]+1 < dist[xx][yy][i])) {
                        dist[xx][yy][i] = dist[x][y][d]+1;
                        Q.pb(mp(mp(xx,yy),i));
                    }
                }
            }
        }
    }

    return 0;
}

Compilation message

golf.cpp: In function 'int main()':
golf.cpp:45:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < xLines.size(); i++) {
                 ~~^~~~~~~~~~~~~~~
golf.cpp:46:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (j = 0; j < yLines.size(); j++) {
                     ~~^~~~~~~~~~~~~~~
golf.cpp:73:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if ((xx >= 0) && (xx < xLines.size()) && (yy >= 0) && (yy < yLines.size()) && yes) {
                               ~~~^~~~~~~~~~~~~~~
golf.cpp:73:71: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if ((xx >= 0) && (xx < xLines.size()) && (yy >= 0) && (yy < yLines.size()) && yes) {
                                                                    ~~~^~~~~~~~~~~~~~~
golf.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d %d %d",&S,&T,&U,&V,&N);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
golf.cpp:24:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d",&A[i],&B[i],&C[i],&D[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 63096 KB Output is correct
2 Correct 37 ms 63104 KB Output is correct
3 Correct 61 ms 63224 KB Output is correct
4 Correct 43 ms 64000 KB Output is correct
5 Correct 80 ms 71288 KB Output is correct
6 Correct 70 ms 70476 KB Output is correct
7 Correct 91 ms 70576 KB Output is correct
8 Correct 76 ms 70904 KB Output is correct
9 Correct 79 ms 70136 KB Output is correct
10 Correct 66 ms 70392 KB Output is correct
11 Correct 59 ms 70904 KB Output is correct
12 Correct 70 ms 70008 KB Output is correct
13 Correct 90 ms 70648 KB Output is correct
14 Correct 78 ms 70776 KB Output is correct
15 Correct 67 ms 65376 KB Output is correct
16 Correct 145 ms 69044 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 63096 KB Output is correct
2 Correct 37 ms 63104 KB Output is correct
3 Correct 61 ms 63224 KB Output is correct
4 Correct 43 ms 64000 KB Output is correct
5 Correct 80 ms 71288 KB Output is correct
6 Correct 70 ms 70476 KB Output is correct
7 Correct 91 ms 70576 KB Output is correct
8 Correct 76 ms 70904 KB Output is correct
9 Correct 79 ms 70136 KB Output is correct
10 Correct 66 ms 70392 KB Output is correct
11 Correct 59 ms 70904 KB Output is correct
12 Correct 70 ms 70008 KB Output is correct
13 Correct 90 ms 70648 KB Output is correct
14 Correct 78 ms 70776 KB Output is correct
15 Correct 67 ms 65376 KB Output is correct
16 Correct 145 ms 69044 KB Output is correct
17 Correct 237 ms 93316 KB Output is correct
18 Correct 225 ms 94116 KB Output is correct
19 Correct 175 ms 86008 KB Output is correct
20 Correct 251 ms 91036 KB Output is correct
21 Correct 279 ms 94108 KB Output is correct
22 Correct 208 ms 91920 KB Output is correct
23 Correct 141 ms 87300 KB Output is correct
24 Correct 277 ms 88964 KB Output is correct
25 Correct 98 ms 83576 KB Output is correct
26 Correct 261 ms 89184 KB Output is correct
27 Correct 76 ms 66040 KB Output is correct
28 Correct 165 ms 69880 KB Output is correct
29 Correct 173 ms 70012 KB Output is correct

Subtask #3
0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 63096 KB Output is correct
2 Correct 37 ms 63104 KB Output is correct
3 Correct 61 ms 63224 KB Output is correct
4 Correct 43 ms 64000 KB Output is correct
5 Correct 80 ms 71288 KB Output is correct
6 Correct 70 ms 70476 KB Output is correct
7 Correct 91 ms 70576 KB Output is correct
8 Correct 76 ms 70904 KB Output is correct
9 Correct 79 ms 70136 KB Output is correct
10 Correct 66 ms 70392 KB Output is correct
11 Correct 59 ms 70904 KB Output is correct
12 Correct 70 ms 70008 KB Output is correct
13 Correct 90 ms 70648 KB Output is correct
14 Correct 78 ms 70776 KB Output is correct
15 Correct 67 ms 65376 KB Output is correct
16 Correct 145 ms 69044 KB Output is correct
17 Correct 237 ms 93316 KB Output is correct
18 Correct 225 ms 94116 KB Output is correct
19 Correct 175 ms 86008 KB Output is correct
20 Correct 251 ms 91036 KB Output is correct
21 Correct 279 ms 94108 KB Output is correct
22 Correct 208 ms 91920 KB Output is correct
23 Correct 141 ms 87300 KB Output is correct
24 Correct 277 ms 88964 KB Output is correct
25 Correct 98 ms 83576 KB Output is correct
26 Correct 261 ms 89184 KB Output is correct
27 Correct 76 ms 66040 KB Output is correct
28 Correct 165 ms 69880 KB Output is correct
29 Correct 173 ms 70012 KB Output is correct
30 Runtime error 155 ms 26384 KB Execution killed with signal 11 (could be triggered by violating memory limits)
31 Halted 0 ms 0 KB -