Submission #6834185


Source Code Expand

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#include <bits/stdc++.h>

using namespace std;

int n, frequency[183579396], ncr[40][40];
char x[20];
long long answer;

int main() {
	for (int i = 0; i < 40; i++) {
		ncr[i][0] = ncr[i][i] = 1;
		for (int j = 1; j < i; j++)
			ncr[i][j] = ncr[i - 1][j - 1] + ncr[i - 1][j];
	}
	// printf("%d\n", ncr[35][10]);
	scanf("%d", &n);
	while (n--) {
		scanf("%s", x);
		sort(x, x + 10);
		int id = 0;
		for (int i = 0; i < 10; i++)
			id += ncr['z' - x[i] + 9 - i][10 - i];
		// printf("id=%d\n", id);
		answer += frequency[id]++;
	}
	printf("%lld\n", answer);
}

Submission Info

Submission Time
Task C - Green Bin
User nhho
Language C++14 (GCC 5.4.1)
Score 300
Code Size 586 Byte
Status AC
Exec Time 169 ms
Memory 715264 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:18:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s", x);
                 ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 13
Set Name Test Cases
Sample a01, a02, a03
All a01, a02, a03, b04, b05, b06, b07, b08, b09, b10, b11, b12, b13
Case Name Status Exec Time Memory
a01 AC 2 ms 4352 KB
a02 AC 2 ms 4352 KB
a03 AC 2 ms 2304 KB
b04 AC 1 ms 256 KB
b05 AC 15 ms 256 KB
b06 AC 119 ms 516992 KB
b07 AC 21 ms 256 KB
b08 AC 169 ms 715264 KB
b09 AC 167 ms 715008 KB
b10 AC 169 ms 715264 KB
b11 AC 22 ms 2304 KB
b12 AC 167 ms 715136 KB
b13 AC 86 ms 436480 KB