Submission #26096021

Source Code Expand

#include <bits/stdc++.h>

using namespace std;

long long n, ans;

int main() {
	scanf("%lld", &n);
	for (int i = 1; i <= 16; i++) {
		for (int j = 0; ; j++) {
			string sa(i, '1'), sb(j, '0'), sc(j, '9');
			long long ta = stoll(sa + sb), tb = stoll(sa + sc);
			if (ta > n)
				break;
			ans += min(n, tb) - ta + 1;
		}
	}
	printf("%lld\n", ans);
}

Submission Info

Submission Time
Task A - Leading 1s
User nhho
Language C++ (GCC 9.2.1)
Score 300
Code Size 368 Byte
Status AC
Exec Time 8 ms
Memory 3792 KiB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    8 |  scanf("%lld", &n);
      |  ~~~~~^~~~~~~~~~~~

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 18
Set Name Test Cases
Sample 00-sample-001.txt, 00-sample-002.txt, 00-sample-003.txt
All 00-sample-001.txt, 00-sample-002.txt, 00-sample-003.txt, 01-001.txt, 01-002.txt, 01-003.txt, 01-004.txt, 01-005.txt, 01-006.txt, 01-007.txt, 01-008.txt, 01-009.txt, 01-010.txt, 01-011.txt, 01-012.txt, 01-013.txt, 01-014.txt, 01-015.txt
Case Name Status Exec Time Memory
00-sample-001.txt AC 8 ms 3744 KiB
00-sample-002.txt AC 2 ms 3792 KiB
00-sample-003.txt AC 2 ms 3716 KiB
01-001.txt AC 1 ms 3744 KiB
01-002.txt AC 1 ms 3756 KiB
01-003.txt AC 3 ms 3676 KiB
01-004.txt AC 3 ms 3684 KiB
01-005.txt AC 2 ms 3756 KiB
01-006.txt AC 2 ms 3704 KiB
01-007.txt AC 2 ms 3620 KiB
01-008.txt AC 2 ms 3620 KiB
01-009.txt AC 2 ms 3744 KiB
01-010.txt AC 3 ms 3680 KiB
01-011.txt AC 3 ms 3776 KiB
01-012.txt AC 2 ms 3728 KiB
01-013.txt AC 2 ms 3668 KiB
01-014.txt AC 2 ms 3684 KiB
01-015.txt AC 2 ms 3604 KiB