Submission #871641

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Source Code Expand

#include<iostream>
#include<map>
#include<algorithm>
#include<vector>
using namespace std;

int main()
{
    int n;
    int st, ed;
    pair<int, int> tm[30000];

    cin >> n;

    for (int i = 0; i < n; ++i) {
        scanf("%4d-%4d", &st, &ed);
        tm[i].first = st;
        tm[i].second = ed;

        if ((tm[i].first) % 5!=0) {
            tm[i].first -= (tm[i].first) % 5;
        }
        if ((tm[i].second) % 5 != 0){
            tm[i].second += 5 - (tm[i].second) % 5;
            if ((tm[i].second) % 100 == 60) {
                tm[i].second = tm[i].second - 60 + 100;
            }

        }
    }//set

    sort(tm, tm + n);

    vector<pair<int, int>>ans;
    int a = tm[0].first;
    int b = tm[0].second;
    for (int i = 0; i < n; ++i) {
        if (tm[i].first <= b) {
            b = max(b, tm[i].second);
        }
        else {
            ans.push_back({ a,b });
            a = tm[i].first;
            b = tm[i].second;
        }
    }

    ans.push_back({ a,b });
    for (int i = 0; i < ans.size();++i)
    printf("%04d-%04d\n", ans[i].first,ans[i].second);

    return 0;

}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%4d-%4d", &st, &ed);
                                   ^

Judge Result