oj.uz

Submission #793109

# Submission time Handle Problem Language Result Execution time Memory
793109 2023-07-25T14:00:36 Z Amylopectin Roads (CEOI20_roads) C++14
100 / 100
 161 ms 19908 KB 
#include <stdio.h>
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
const long long mxn = 1e6 + 10,mxi = 2e7 + 10;
double cxx;
struct sett
{
    double stx,sty,slo;
    long long num;
    bool operator () (const struct sett &l,const struct sett &r)const
    {
        return (l.sty + (cxx - l.stx) * l.slo) < (r.sty + (cxx - r.stx) * r.slo);
        // return l.sty > r.sty;
    }
};

struct we
{
    long long xx,yy,sta,num,bey;
    double slo,soo;
};
bool cmp(const struct we &l,const struct we &r)
{
    // if(l.soo - r.soo > 0.0000001 || l.soo - r.soo < -0.0000001)
    // // if(l.soo != r.soo)
    //     return l.soo < r.soo;
    if(l.xx != r.xx)
        return l.xx < r.xx;
    return l.yy < r.yy;
}
set<struct sett,struct sett> see;
struct we ta[mxn] = {};
long long nux[mxn] = {},nuy[mxn] = {};
int main()
{
    long long i,j,n,m,cn,cm,fn,fm,f,sta = 0,of;
    set<struct sett>::iterator cit,fit;
    double t,p,cslo,cx,cy;
    scanf("%lld",&n);
    for(i=0; i<n; i++)
    {
        scanf("%lld %lld %lld %lld",&cn,&cm,&fn,&fm);
        if(cn > fn || (cn == fn && cm > fm))
        {
            f = cn;
            cn = fn;
            fn = f;
            f = cm;
            cm = fm;
            fm = f;
        }
        if(fn - cn == 0)
        {
            // sta = 1;
            cslo = mxi;
            // cslo = mxi;
        }
        else 
        {
            t = fm - cm;
            p = fn - cn;
            // ta[i].slo = t / p;
            cslo = t/p;
        }
        ta[i*2] = {cn,cm,0,i,0,cslo,0};
        ta[i*2+1] = {fn,fm,1,i,cm,cslo,0};
    }
    sort(ta,ta+n*2,cmp);
    see.insert({-mxi,-mxi,0,n});
    of = 0;
    printf("\n");
    for(i=0; i<2*n; i++)
    {
        cxx = ta[i].xx;
        cx = cxx;
        cy = ta[i].yy;
        if(ta[i].sta == 0)
        {
            cn = (*prev(see.upper_bound({cx,cy,0,0}))).num;
            if(cn == n && of == 0)
            {
                of = 1;
            }
            else 
            {
                printf("%lld %lld %.0lf %.0lf\n",nux[cn],nuy[cn],cx,cy);
            }
            nux[cn] = cx;
            nuy[cn] = cy;
            see.insert({cx,cy,ta[i].slo,ta[i].num});
            fn = ta[i].num;
            nux[fn] = cx;
            nuy[fn] = cy;
        }
        else 
        {
            cit = prev(see.upper_bound({cx,cy+0.001,0,0}));
            // cn = (*cit).num;
            fit = prev(cit);
            cn = (*fit).num;
            see.erase(cit);
            nux[cn] = cx;
            nuy[cn] = cy;
        }
    }
    // if(sta == 1)
    // {
    //     for(i=0; i<n; i++)
    //     {
    //         ta[i].soo = ta[i].xx;
    //     }
    // }
    // else 
    // {
    //     for(i=0; i<n; i++)
    //     {
    //         t = ta[i].xx;
    //         f = ta[i].yy;
    //         ta[i].soo = f - (t * cslo);
    //     }
    // }
    // sort(ta,ta+n,cmp);
    // printf("\n");
    // for(i=0; i<n-1; i++)
    // {
    //     // if(ta[i].soo != ta[i+1].soo)
    //     // {
    //     //     printf("%lld %lld %lld %lld\n",ta[i].xx,ta[i].yy,ta[i+1].xx,ta[i+1].yy);
    //     // }
    //     // else 
    //     // {
    //         printf("%lld %lld %lld %lld\n",ta[i].xx2,ta[i].yy2,ta[i+1].xx,ta[i+1].yy);
    //     // }
    // }
    return 0;
}

Compilation message

roads.cpp: In function 'int main()':
roads.cpp:39:17: warning: unused variable 'j' [-Wunused-variable]
   39 |     long long i,j,n,m,cn,cm,fn,fm,f,sta = 0,of;
      |                 ^
roads.cpp:39:21: warning: unused variable 'm' [-Wunused-variable]
   39 |     long long i,j,n,m,cn,cm,fn,fm,f,sta = 0,of;
      |                     ^
roads.cpp:39:37: warning: unused variable 'sta' [-Wunused-variable]
   39 |     long long i,j,n,m,cn,cm,fn,fm,f,sta = 0,of;
      |                                     ^~~
roads.cpp:42:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     scanf("%lld",&n);
      |     ~~~~~^~~~~~~~~~~
roads.cpp:45:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |         scanf("%lld %lld %lld %lld",&cn,&cm,&fn,&fm);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 58 ms 6608 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 14 ms 2100 KB Output is correct
5 Correct 32 ms 3864 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 17 ms 2132 KB Output is correct
5 Correct 26 ms 3940 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 14 ms 2168 KB Output is correct
10 Correct 161 ms 18620 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 2 ms 396 KB Output is correct
4 Correct 14 ms 2176 KB Output is correct
5 Correct 26 ms 3904 KB Output is correct
6 Correct 1 ms 312 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 14 ms 2040 KB Output is correct
10 Correct 82 ms 9400 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 1 ms 212 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 13 ms 2132 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 16 ms 2068 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 13 ms 2132 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 1 ms 316 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 0 ms 340 KB Output is correct
22 Correct 7 ms 960 KB Output is correct
23 Correct 6 ms 1108 KB Output is correct
24 Correct 11 ms 1492 KB Output is correct
25 Correct 0 ms 224 KB Output is correct

Subtask #6
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 60 ms 6676 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 468 KB Output is correct
6 Correct 14 ms 2128 KB Output is correct
7 Correct 35 ms 3912 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 2 ms 452 KB Output is correct
11 Correct 19 ms 2120 KB Output is correct
12 Correct 161 ms 18612 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 14 ms 2160 KB Output is correct
17 Correct 79 ms 9504 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 320 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 7 ms 852 KB Output is correct
27 Correct 6 ms 852 KB Output is correct
28 Correct 11 ms 1492 KB Output is correct
29 Correct 90 ms 12020 KB Output is correct
30 Correct 118 ms 17148 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 112 ms 12512 KB Output is correct
33 Correct 127 ms 12476 KB Output is correct
34 Correct 135 ms 16588 KB Output is correct
35 Correct 142 ms 17220 KB Output is correct
36 Correct 152 ms 19908 KB Output is correct