oj.uz

Submission #970494

# Submission time Handle Problem Language Result Execution time Memory
970494 2024-04-26T15:54:14 Z hariaakas646 Snowball (JOI21_ho_t2) C++14
100 / 100
 2293 ms 23276 KB 
#include <bits/stdc++.h>

using namespace std;

#define scd(t) scanf("%d", &t)
#define sclld(t) scanf("%lld", &t)
#define forr(i, j, k) for (int i = j; i < k; i++)
#define frange(i, j) forr(i, 0, j)
#define all(cont) cont.begin(), cont.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
typedef long long int lli;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<lli> vll;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef map<int, int> mpii;
typedef set<int> seti;
typedef multiset<int> mseti;
typedef long double ld;


void usaco()
{
    freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
//    freopen("problem.out", "w", stdout);
}


int main() {
    // usaco();
    int n, q;
    scd(n);
    scd(q);

    vll pos(n+2);
    pos[0] = -3e18;
    pos[n+1] = 3e18;
    frange(i, n) sclld(pos[i+1]);

    vll vec(q);

    frange(i, q) sclld(vec[i]);

    map<lli, int> po, ne;
    po[0] = -1;
    ne[0] = -1;

    lli tot = 0;
    frange(i, q) {
        tot += vec[i];
        if(tot >= 0) {
            if(po.find(tot) == po.end())
                po[tot] = i;
        }
        else {
            if(ne.find(abs(tot)) == ne.end()) 
                ne[abs(tot)] = i;
        } 
    }

    int mi = 1e9;
    auto it = po.end();

    while(it != po.begin()) {
        it--;
        lli v = (*it).f;
        mi = min(mi, (*it).s);
        po[v] = mi;
        it = po.find(v);
    }
    it = ne.end();
    mi = 1e9;
    while(it != ne.begin()) {
        it--;
        lli v = (*it).f;
        mi = min(mi, (*it).s);
        ne[v] = mi;
        it = ne.find(v);
    }

    forr(i, 1, n+1) {
        lli lo = pos[i-1];
        lli hi = pos[i];

        while(lo != hi) {
            lli mid = lo+(hi-lo)/2;
            lli pv = mid - pos[i-1];
            lli nv = pos[i] - mid;
            auto it = po.lower_bound(pv+1);
            int v1 = 1e9;
            if(it != po.end()) {
                v1 = (*it).s;
            }
            it = ne.lower_bound(nv);
            int v2 = 1e9;
            if(it != ne.end()) {
                v2 = (*it).s;
            } 
            if(v2 < v1) {
                hi = mid;
            }
            else {
                lo = mid+1;
            }
        }
        lli l = lo;

        lo = pos[i];
        hi = pos[i+1];

        while(lo != hi) {
            lli mid = lo+(hi-lo+1)/2;
            lli pv = mid - pos[i];
            lli nv = pos[i+1] - mid;
            auto it = po.lower_bound(pv);
            int v1 = 1e9;
            if(it != po.end()) {
                v1 = (*it).s;
            }
            it = ne.lower_bound(nv+1);
            int v2 = 1e9;
            if(it != ne.end()) {
                v2 = (*it).s;
            } 
            if(v1 < v2) {
                lo = mid;
            }
            else {
                hi = mid-1;
            }
        }
        lli r = lo;
        printf("%lld\n", r-l);
    }
}

Compilation message

Main.cpp: In function 'void usaco()':
Main.cpp:30:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |     freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: In function 'int main()':
Main.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define scd(t) scanf("%d", &t)
      |                ~~~~~^~~~~~~~~~
Main.cpp:38:5: note: in expansion of macro 'scd'
   38 |     scd(n);
      |     ^~~
Main.cpp:5:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | #define scd(t) scanf("%d", &t)
      |                ~~~~~^~~~~~~~~~
Main.cpp:39:5: note: in expansion of macro 'scd'
   39 |     scd(q);
      |     ^~~
Main.cpp:6:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 | #define sclld(t) scanf("%lld", &t)
      |                  ~~~~~^~~~~~~~~~~~
Main.cpp:44:18: note: in expansion of macro 'sclld'
   44 |     frange(i, n) sclld(pos[i+1]);
      |                  ^~~~~
Main.cpp:6:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    6 | #define sclld(t) scanf("%lld", &t)
      |                  ~~~~~^~~~~~~~~~~~
Main.cpp:48:18: note: in expansion of macro 'sclld'
   48 |     frange(i, q) sclld(vec[i]);
      |                  ^~~~~

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 344 KB Output is correct
4 Correct 8 ms 600 KB Output is correct
5 Correct 8 ms 600 KB Output is correct
6 Correct 7 ms 348 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 5 ms 604 KB Output is correct
9 Correct 4 ms 444 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 9 ms 604 KB Output is correct
16 Correct 8 ms 604 KB Output is correct
17 Correct 4 ms 604 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct

Subtask #2
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 344 KB Output is correct
4 Correct 8 ms 600 KB Output is correct
5 Correct 8 ms 600 KB Output is correct
6 Correct 7 ms 348 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 5 ms 604 KB Output is correct
9 Correct 4 ms 444 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 9 ms 604 KB Output is correct
16 Correct 8 ms 604 KB Output is correct
17 Correct 4 ms 604 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 70 ms 16644 KB Output is correct
21 Correct 71 ms 16208 KB Output is correct
22 Correct 70 ms 16212 KB Output is correct
23 Correct 94 ms 16212 KB Output is correct
24 Correct 286 ms 16448 KB Output is correct
25 Correct 1955 ms 21244 KB Output is correct
26 Correct 1880 ms 21008 KB Output is correct
27 Correct 1782 ms 19932 KB Output is correct
28 Correct 1629 ms 18784 KB Output is correct
29 Correct 1328 ms 13664 KB Output is correct
30 Correct 344 ms 7528 KB Output is correct
31 Correct 59 ms 6740 KB Output is correct
32 Correct 50 ms 7220 KB Output is correct
33 Correct 125 ms 2436 KB Output is correct
34 Correct 1991 ms 21532 KB Output is correct
35 Correct 1851 ms 19772 KB Output is correct
36 Correct 2293 ms 21228 KB Output is correct
37 Correct 1946 ms 19924 KB Output is correct
38 Correct 2045 ms 19592 KB Output is correct
39 Correct 1896 ms 19888 KB Output is correct
40 Correct 536 ms 19908 KB Output is correct
41 Correct 139 ms 17252 KB Output is correct
42 Correct 75 ms 7088 KB Output is correct
43 Correct 741 ms 22972 KB Output is correct
44 Correct 123 ms 16928 KB Output is correct
45 Correct 923 ms 19932 KB Output is correct
46 Correct 1103 ms 23180 KB Output is correct
47 Correct 373 ms 14928 KB Output is correct
48 Correct 539 ms 23276 KB Output is correct