Submission #3402439

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <cstdio>
#include <vector>
#include <map>     //pair
#include <utility> //sort

using namespace std;
typedef long long ll;
typedef vector<pair<ll, ll>> Pll;

Pll input(ll size);
bool compare_s(pair<ll, ll> p, pair<ll, ll> q)
{
    return p.second < q.second;
}

ll maxWork(pair<ll, ll> p, Pll work)
{
    ll start = p.first, end = p.second;
    ll last = start, result = 0;
    ll size = work.size();

    for (ll i = 0; i < size; i++)
    {
        if (work[i].second > end)
        {
            break;
        }
        else if (work[i].first < last)
        {
            continue;
        }
        else
        {
            result++;
            last = work[i].second;
        }
    }
    return result;
}

int main()
{
    ll N, M;
    scanf("%lld %lld", &N, &M);
    Pll work = input(N);

    sort(work.begin(), work.end(), compare_s);

    ll first, second;
    while (scanf("%lld %lld", &first, &second) != EOF)
    {
        pair<ll, ll> p(first, second);
        printf("%lld\n", maxWork(p, work));
    }
}

//---------------------------------------------

Pll input(ll size)
{
    Pll v(size);
    for (ll i = 0; i < size; ++i)
    {
        ll left, right;
        scanf("%lld %lld", &left, &right);
        v[i] = make_pair(left, right);
    }
    return v;
}
// cout << "this is " << work[i].first << " and " << work[i].second << ", and " << i << endl;

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:46:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &N, &M);
                               ^
./Main.cpp: In function ‘Pll input(ll)’:
./Main.cpp:67:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld", &left, &right);
                                          ^

Judge Result