Submission #1254638

#	Time	Username	Problem	Language	Result	Execution time	Memory
1254638		vibhas	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	261 ms	8424 KiB

Main

#include <bits/stdc++.h>

typedef int valueType;
typedef std::pair<valueType, valueType> ValuePair;
typedef std::vector<ValuePair> PairVector;
typedef std::stack<ValuePair> Stack;

int main() {
    valueType N;

    std::cin >> N;

    PairVector source(N);

    for (auto &iter: source) {
        valueType X, E;

        std::cin >> X >> E;

        iter = std::make_pair(E - X, E + X);
    }

    std::sort(source.begin(), source.end());

    Stack stack;

    for (auto const &iter: source) {
        while (!stack.empty() && stack.top().second <= iter.second)
            stack.pop();

        stack.push(iter);
    }

    std::cout << stack.size() << std::endl;

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 23 / 23
• Subtask 3: 36 / 36
• Subtask 4: 31 / 31