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Submission #532387

# Submission time Handle Problem Language Result Execution time Memory
532387 2022-03-02T20:11:27 Z Vladth11 Vudu (COCI15_vudu) C++14
56 / 140
 383 ms 65540 KB 
#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;
typedef pair <long double, pii> muchie;

const ll NMAX = 2000001;
const ll VMAX = 1000001;
const ll INF = (1LL << 60);
const ll MOD = 1000000007;
const ll BLOCK = 447;
const ll nr_of_bits = 21;

ll s[NMAX];
ll v[NMAX];
map <ll, ll> mp;
ll aib[NMAX + 1];

void update(ll node, ll x){
    for(; node <= NMAX; node += node&(-node))
        aib[node] += x;
}

ll query(ll node){
    ll x = 0;
    for(; node > 0; node -= node&(-node))
        x += aib[node];
    return x;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll n, i;
    cin >> n;
    for(i = 1; i <= n; i++){
        cin >> v[i];
    }
    ll p;
    cin >> p;
    vector <ll> a;
    for(i = 1; i <= n; i++){
        v[i] = v[i] - p;
        s[i] = s[i - 1] + 1LL * v[i];
        a.push_back(s[i]);
    }
    a.push_back(0);
    sort(a.begin(), a.end());
    ll cnt = 0;
    for(ll i = 0; i < a.size(); i++){
        if(i == 0 || a[i] != a[i - 1])
            cnt++;
        mp[a[i]] = cnt;
    }
    ll sol = 0;
    update(mp[0] + 1, 1);
    for(i = 1; i <= n; i++){
        s[i] = mp[s[i]] +  1; /// sa devina si 0 -> 1
        sol += 1LL * query(s[i]);
        update(s[i], 1);
    }
    cout << sol;
    return 0;
}

Compilation message

vudu.cpp: In function 'int main()':
vudu.cpp:54:21: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(ll i = 0; i < a.size(); i++){
      |                   ~~^~~~~~~~~~

Subtask #1
56.0 / 140.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 972 KB Output is correct
2 Correct 3 ms 844 KB Output is correct
3 Correct 3 ms 844 KB Output is correct
4 Runtime error 315 ms 65540 KB Execution killed with signal 9
5 Correct 383 ms 51652 KB Output is correct
6 Runtime error 299 ms 65540 KB Execution killed with signal 9
7 Runtime error 325 ms 65540 KB Execution killed with signal 9
8 Runtime error 287 ms 65540 KB Execution killed with signal 9
9 Runtime error 300 ms 65540 KB Execution killed with signal 9
10 Runtime error 293 ms 65540 KB Execution killed with signal 9