Submission #522701

#	Time	Username	Problem	Language	Result	Execution time	Memory
522701		InternetPerson10	Distributing Candies (IOI21_candies)	C++17	8 / 100	100 ms	15140 KiB

candies

#include "candies.h"
#include <vector>

using namespace std;
typedef long long ll;

vector<int> distribute_candies(vector<int> cInt, vector<int> lInt, vector<int> rInt, vector<int> vInt) {
    int n = cInt.size();
    int q = vInt.size();
    vector<ll> s(n+1), c(n), l(n), r(n), v(vInt.size());
    for(int i = 0; i < n; i++) {
        c[i] = cInt[i];
    }
    for(int i = 0; i < q; i++) {
        l[i] = lInt[i];
        r[i] = rInt[i];
        v[i] = vInt[i];
    }
    bool subtask2 = true, subtask3 = true, subtask4 = true;
    for(int i = 1; i < n; i++) {
        if(c[i] != c[i-1]) subtask3 = false;
    }
    for(int i = 0; i < q; i++) {
        if(v[i] < 0) subtask2 = false;
        if(r[i] - l[i] != n-1) subtask4 = false;
    }
    if(n <= 2000 && q <= 2000) { // Subtask 1
        for(int i = 0; i < q; i++) {
            for(int j = l[i]; j <= r[i]; j++) {
                s[j] += v[i];
                s[j] = max(s[j], 0LL);
                s[j] = min(s[j], c[j]);
            }
        }
    }
    else if(subtask2) {
        for(int i = 0; i < q; i++) {
            s[l[i]] += v[i];
            s[r[i]+1] -= v[i];
        }
        for(int i = 1; i < n; i++) {
            s[i] += s[i-1];
        }
        for(int i = 0; i < n; i++) {
            s[i] = min(s[i], c[i]);
        }
    }
    else if(subtask3) {

    }
    else if(subtask4) {

    }
    else {

    }
    vector<int> sInt(n);
    for(int i = 0; i < n; i++) sInt[i] = s[i];
    return sInt;
}

• Subtask 1: 0 / 3
• Subtask 2: 8 / 8
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 33