Submission #2180344


Source Code Expand

#include <stdio.h>
typedef long long int;
int main(void){
	int a, b;
	int i;
	const int m = 1000000007;
	scanf("%d%d", &a, &b);

	int result = 0;
	int sum = 0;
	for (i = 1; i <= b; i++) {
		sum = (sum + i) % m;
		if (i >= a) result = (result + sum * i) % m;
	}

	printf("%d\n", result);
	return 0;
}

Submission Info

Submission Time
Task A - Counting on a Triangle
User sheyasutaka
Language C (GCC 5.4.1)
Score 20
Code Size 316 Byte
Status WA
Exec Time 5 ms
Memory 128 KB

Compile Error

./Main.c:2:1: warning: useless type name in empty declaration
 typedef long long int;
 ^
./Main.c: In function ‘main’:
./Main.c:7:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &a, &b);
  ^

Judge Result

Set Name Sample Subtask1 All
Score / Max Score 0 / 0 20 / 20 0 / 80
Status
AC × 2
WA × 1
AC × 13
AC × 13
WA × 13
Set Name Test Cases
Sample subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt
Subtask1 subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask0_sample_01.txt, subtask0_sample_02.txt
All subtask0_sample_01.txt, subtask0_sample_02.txt, subtask0_sample_03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt
Case Name Status Exec Time Memory
subtask0_sample_01.txt AC 1 ms 128 KB
subtask0_sample_02.txt AC 1 ms 128 KB
subtask0_sample_03.txt WA 4 ms 128 KB
subtask1_01.txt AC 1 ms 128 KB
subtask1_02.txt AC 1 ms 128 KB
subtask1_03.txt AC 1 ms 128 KB
subtask1_04.txt AC 1 ms 128 KB
subtask1_05.txt AC 1 ms 128 KB
subtask1_06.txt AC 1 ms 128 KB
subtask1_07.txt AC 1 ms 128 KB
subtask1_08.txt AC 1 ms 128 KB
subtask1_09.txt AC 1 ms 128 KB
subtask1_10.txt AC 1 ms 128 KB
subtask1_11.txt AC 1 ms 128 KB
subtask2_01.txt WA 5 ms 128 KB
subtask2_02.txt WA 5 ms 128 KB
subtask2_03.txt WA 4 ms 128 KB
subtask2_04.txt WA 4 ms 128 KB
subtask2_05.txt WA 4 ms 128 KB
subtask2_06.txt WA 4 ms 128 KB
subtask2_07.txt WA 3 ms 128 KB
subtask2_08.txt WA 3 ms 128 KB
subtask2_09.txt WA 5 ms 128 KB
subtask2_10.txt WA 5 ms 128 KB
subtask2_11.txt WA 5 ms 128 KB
subtask2_12.txt WA 4 ms 128 KB