제출 #735262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
735262		aykhn	Trol (COCI19_trol)	C++14	50 / 50	1 ms	340 KiB

trol

#include <bits/stdc++.h>


/*
    author: aykhn
    5/1/2023
*/

using namespace std;

typedef long long ll;

const int oo = INT_MAX;
const ll ooo = LONG_MAX;
const ll mod = 1e9 + 7;

#define OPT ios_base::sync_with_stdio(0); \
            cin.tie(0); \
            cout.tie(0)
#define pii pair<int,int>
#define pll pair<ll,ll>
#define all(v) v.begin(), v.end()
#define mpr make_pair
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define inf 0x3F3F3F3F
#define tos to_string
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount
#define print(v) for(int i = 0; i < v.size(); i++) cout << v[i] << " "; cout<<endl;

char make(int i)
{
    string s = tos(i);
    while (s.length() > 1)
    {
        int x = 0;
        for (int j = 0; j < s.length(); j++) x += s[j] - '0';

        s = tos(x);
    }

    return s[0];
}
int main()
{
    OPT;
    int q;
    cin >> q;

    while (q--)
    {
        ll l, r;
        cin >> l >> r;

        ll res = 0;

        while ((l - 1)%9 + 1 != 1 && l <= r)
        {
            res += (l - 1)%9 + 1;
            l++;
        }

        while ((r - 1)%9 + 1 != 9 && l <= r)
        {
            res += (r - 1)%9 + 1;
            r--;
        }

        if (l > r)
        {
            cout << res << endl;
            continue;
        }

        cout << res + (r - l + 1)*5 << endl;
    }
}

컴파일 시 표준 에러 (stderr) 메시지

trol.cpp: In function 'char make(int)':
trol.cpp:40:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         for (int j = 0; j < s.length(); j++) x += s[j] - '0';
      |                         ~~^~~~~~~~~~~~

• Subtask 1: 50 / 50