제출 #975485

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
975485		vjudge1	Trol (COCI19_trol)	C++17	50 / 50	1 ms	604 KiB

trol

#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")

#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define nl "\n"
#define ll long long
#define str string
#define dl double
#define ts(val) to_string(val)
#define ti(val) stoi(val)
#define ft first
#define sc second
#define Pb push_back
#define pB pop_back
#define mp make_pair
#define mst(array,value) memset(array,value,sizeof(array))
#define gtr greater<int>()
#define all(ar) ar.begin(),ar.end()
using namespace std;

#define ull unsigned long long int
//#define int long long

ull sum[] = {9,1,2,3,4,5,6,7,8};
signed main() {
    //fast
    //cout << (ll)pow(2,60);
    //1152921504606846976
    int t; cin >> t;
    while(t--) {
        ull a,b; cin >> a >> b;
        ull x = a%9, y = b%9;
        //cout << x << " " << y << nl;
        ull z = (b-a)/9;
        //cout << z << nl;
        ull ans = z*45;
        //cout << ans << nl;
        if(x > y) {
            for(int i=x;i<=8;i++) ans += sum[i];
            for(int i=0;i<=y;i++) ans += sum[i];
        } else {
            for(int i=x;i<=y;i++) ans += sum[i];
        }
        cout << ans << nl;
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

trol.cpp: In function 'int main()':
trol.cpp:41:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare]
   41 |             for(int i=0;i<=y;i++) ans += sum[i];
      |                         ~^~~
trol.cpp:43:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare]
   43 |             for(int i=x;i<=y;i++) ans += sum[i];
      |                         ~^~~

• Subtask 1: 50 / 50