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Submission #946975

# Submission time Handle Problem Language Result Execution time Memory
946975 2024-03-15T08:51:50 Z hariaakas646 Examination (JOI19_examination) C++17
100 / 100
 454 ms 51760 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
#define scd(t) scanf("%d", &t)
#define sclld(t) scanf("%lld", &t)
#define forr(i, l, r) for(int i=l; i<r; i++)
#define frange(i, l) forr(i, 0, l)
#define pb push_back
#define mp make_pair
#define f first
#define s second
#define all(x) x.begin(), x.end()
 
typedef vector<int> vi;
typedef pair<int, int> pii;
typedef vector<pii> vii;
typedef long long lli;
typedef vector<vi> vvi;
typedef vector<lli> vll;
typedef vector<bool> vb;
typedef set<int> seti;
typedef multiset<int> mseti;
 
void usaco()
{
    freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
//    freopen("problem.out", "w", stdout);
}

const int MAXN = 1e5 + 5;
vector<int> tree1[4*MAXN], tree2[4*MAXN];
vii vec;

void build(int x, int l, int r) {
    if(l == r) {
        // printf("%d %d\n", x, l);
        tree1[x].pb(vec[l].s);
        tree2[x].pb(vec[l].f + vec[l].s);

        return; 
    }
    int mid = (l+r)/2;
    build(2*x+1, l, mid);
    build(2*x+2, mid+1, r);
    merge(all(tree1[2*x+1]), all(tree1[2*x+2]), back_inserter(tree1[x]));
    merge(all(tree2[2*x+1]), all(tree2[2*x+2]), back_inserter(tree2[x]));
}

int query1(int x, int l, int r, int lx, int rx, int v) {
    if(l > rx || r < lx) return 0;
    if(lx <= l && r <= rx) {
        return tree1[x].end() - lower_bound(all(tree1[x]), v);
    }
    int mid = (l+r)/2;
    return query1(2*x+1, l, mid, lx, rx, v) + query1(2*x+2, mid+1, r, lx, rx, v);
}

int query2(int x, int l, int r, int lx, int rx, int v) {
    if(l > rx || r < lx) return 0;
    if(lx <= l && r <= rx) {
        return tree2[x].end() - lower_bound(all(tree2[x]), v);
    }
    int mid = (l+r)/2;
    return query2(2*x+1, l, mid, lx, rx, v) + query2(2*x+2, mid+1, r, lx, rx, v);
}

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

    vec = vii(n);
    frange(i, n) {
        scd(vec[i].f);
        scd(vec[i].s);
    }

    sort(all(vec));
    build(0, 0, n-1);

    frange(_, q) {
        int x, y, z;
        scd(x);
        scd(y);
        scd(z);
        int d = z - y;
        int out = 0;
        if(d >= x) {
            int l = lower_bound(all(vec), mp(x, 0)) - vec.begin();
            int r = lower_bound(all(vec), mp(d+1, 0)) - vec.begin() - 1;
            out += query2(0, 0, n-1, l, r, z);
            x = d+1;
        }
        int l = lower_bound(all(vec), mp(x, 0)) - vec.begin();
        // int r = lower_bound(all(vec), mp(d+1, 0)) - vec.begin() - 1;
        out += query1(0, 0, n-1, l, n-1, y);
        printf("%d\n", out);
    }

}

Compilation message

examination.cpp: In function 'void usaco()':
examination.cpp:27:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |     freopen("/media/hariaakash646/785EF1075EF0BF46/CompetitiveProgramming/input.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp: In function 'int main()':
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:71:5: note: in expansion of macro 'scd'
   71 |     scd(n);
      |     ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:72:5: note: in expansion of macro 'scd'
   72 |     scd(q);
      |     ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:76:9: note: in expansion of macro 'scd'
   76 |         scd(vec[i].f);
      |         ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:77:9: note: in expansion of macro 'scd'
   77 |         scd(vec[i].s);
      |         ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:85:9: note: in expansion of macro 'scd'
   85 |         scd(x);
      |         ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:86:9: note: in expansion of macro 'scd'
   86 |         scd(y);
      |         ^~~
examination.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)
      |                ~~~~~^~~~~~~~~~
examination.cpp:87:9: note: in expansion of macro 'scd'
   87 |         scd(z);
      |         ^~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 19032 KB Output is correct
2 Correct 4 ms 19036 KB Output is correct
3 Correct 4 ms 19036 KB Output is correct
4 Correct 4 ms 19036 KB Output is correct
5 Correct 5 ms 19036 KB Output is correct
6 Correct 4 ms 19036 KB Output is correct
7 Correct 12 ms 20060 KB Output is correct
8 Correct 9 ms 20056 KB Output is correct
9 Correct 10 ms 20060 KB Output is correct
10 Correct 9 ms 19804 KB Output is correct
11 Correct 8 ms 20000 KB Output is correct
12 Correct 8 ms 19800 KB Output is correct
13 Correct 9 ms 20216 KB Output is correct
14 Correct 10 ms 20060 KB Output is correct
15 Correct 9 ms 20060 KB Output is correct
16 Correct 7 ms 19804 KB Output is correct
17 Correct 9 ms 19984 KB Output is correct
18 Correct 7 ms 19724 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 253 ms 49376 KB Output is correct
2 Correct 249 ms 49292 KB Output is correct
3 Correct 263 ms 49368 KB Output is correct
4 Correct 209 ms 48520 KB Output is correct
5 Correct 158 ms 48524 KB Output is correct
6 Correct 142 ms 47748 KB Output is correct
7 Correct 248 ms 49468 KB Output is correct
8 Correct 236 ms 49748 KB Output is correct
9 Correct 215 ms 49292 KB Output is correct
10 Correct 123 ms 48456 KB Output is correct
11 Correct 185 ms 48376 KB Output is correct
12 Correct 114 ms 47692 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 253 ms 49376 KB Output is correct
2 Correct 249 ms 49292 KB Output is correct
3 Correct 263 ms 49368 KB Output is correct
4 Correct 209 ms 48520 KB Output is correct
5 Correct 158 ms 48524 KB Output is correct
6 Correct 142 ms 47748 KB Output is correct
7 Correct 248 ms 49468 KB Output is correct
8 Correct 236 ms 49748 KB Output is correct
9 Correct 215 ms 49292 KB Output is correct
10 Correct 123 ms 48456 KB Output is correct
11 Correct 185 ms 48376 KB Output is correct
12 Correct 114 ms 47692 KB Output is correct
13 Correct 293 ms 49716 KB Output is correct
14 Correct 303 ms 49804 KB Output is correct
15 Correct 247 ms 49248 KB Output is correct
16 Correct 296 ms 49428 KB Output is correct
17 Correct 172 ms 48924 KB Output is correct
18 Correct 150 ms 47752 KB Output is correct
19 Correct 293 ms 49644 KB Output is correct
20 Correct 332 ms 49872 KB Output is correct
21 Correct 323 ms 49824 KB Output is correct
22 Correct 142 ms 48444 KB Output is correct
23 Correct 186 ms 48336 KB Output is correct
24 Correct 117 ms 47776 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 19032 KB Output is correct
2 Correct 4 ms 19036 KB Output is correct
3 Correct 4 ms 19036 KB Output is correct
4 Correct 4 ms 19036 KB Output is correct
5 Correct 5 ms 19036 KB Output is correct
6 Correct 4 ms 19036 KB Output is correct
7 Correct 12 ms 20060 KB Output is correct
8 Correct 9 ms 20056 KB Output is correct
9 Correct 10 ms 20060 KB Output is correct
10 Correct 9 ms 19804 KB Output is correct
11 Correct 8 ms 20000 KB Output is correct
12 Correct 8 ms 19800 KB Output is correct
13 Correct 9 ms 20216 KB Output is correct
14 Correct 10 ms 20060 KB Output is correct
15 Correct 9 ms 20060 KB Output is correct
16 Correct 7 ms 19804 KB Output is correct
17 Correct 9 ms 19984 KB Output is correct
18 Correct 7 ms 19724 KB Output is correct
19 Correct 253 ms 49376 KB Output is correct
20 Correct 249 ms 49292 KB Output is correct
21 Correct 263 ms 49368 KB Output is correct
22 Correct 209 ms 48520 KB Output is correct
23 Correct 158 ms 48524 KB Output is correct
24 Correct 142 ms 47748 KB Output is correct
25 Correct 248 ms 49468 KB Output is correct
26 Correct 236 ms 49748 KB Output is correct
27 Correct 215 ms 49292 KB Output is correct
28 Correct 123 ms 48456 KB Output is correct
29 Correct 185 ms 48376 KB Output is correct
30 Correct 114 ms 47692 KB Output is correct
31 Correct 293 ms 49716 KB Output is correct
32 Correct 303 ms 49804 KB Output is correct
33 Correct 247 ms 49248 KB Output is correct
34 Correct 296 ms 49428 KB Output is correct
35 Correct 172 ms 48924 KB Output is correct
36 Correct 150 ms 47752 KB Output is correct
37 Correct 293 ms 49644 KB Output is correct
38 Correct 332 ms 49872 KB Output is correct
39 Correct 323 ms 49824 KB Output is correct
40 Correct 142 ms 48444 KB Output is correct
41 Correct 186 ms 48336 KB Output is correct
42 Correct 117 ms 47776 KB Output is correct
43 Correct 304 ms 51680 KB Output is correct
44 Correct 305 ms 51760 KB Output is correct
45 Correct 302 ms 51528 KB Output is correct
46 Correct 304 ms 50240 KB Output is correct
47 Correct 191 ms 50016 KB Output is correct
48 Correct 138 ms 47752 KB Output is correct
49 Correct 356 ms 51700 KB Output is correct
50 Correct 326 ms 51732 KB Output is correct
51 Correct 454 ms 51632 KB Output is correct
52 Correct 143 ms 50052 KB Output is correct
53 Correct 227 ms 49192 KB Output is correct