| Task: | Particle Accelerator II |
| Sender: | kookinnam |
| Submission time: | 2025-11-26 17:40:15 +0200 |
| Language: | Python3 (PyPy3) |
| Status: | READY |
| Result: | ACCEPTED |
| test | verdict | time | |
|---|---|---|---|
| #1 | ACCEPTED | 0.04 s | details |
| #2 | ACCEPTED | 0.04 s | details |
| #3 | ACCEPTED | 0.04 s | details |
| #4 | ACCEPTED | 0.04 s | details |
| #5 | ACCEPTED | 0.04 s | details |
| #6 | ACCEPTED | 0.04 s | details |
| #7 | ACCEPTED | 0.04 s | details |
| #8 | ACCEPTED | 0.04 s | details |
| #9 | ACCEPTED | 0.04 s | details |
| #10 | ACCEPTED | 0.04 s | details |
| #11 | ACCEPTED | 0.04 s | details |
| #12 | ACCEPTED | 0.05 s | details |
| #13 | ACCEPTED | 0.07 s | details |
Code
n = int(input()) arr = list(map(int, input().split())) sum_arr = sum(arr) x_sum = sum(x * x for x in arr) result = (sum_arr * sum_arr - x_sum) // 2 print(result)
Test details
Test 1
Verdict: ACCEPTED
| input |
|---|
| 2 5 10 |
| correct output |
|---|
| 50 |
| user output |
|---|
| 50 |
Test 2
Verdict: ACCEPTED
| input |
|---|
| 3 5 2 1 |
| correct output |
|---|
| 17 |
| user output |
|---|
| 17 |
Test 3
Verdict: ACCEPTED
| input |
|---|
| 4 6 1 8 9 |
| correct output |
|---|
| 197 |
| user output |
|---|
| 197 |
Test 4
Verdict: ACCEPTED
| input |
|---|
| 5 10 10 6 2 10 |
| correct output |
|---|
| 552 |
| user output |
|---|
| 552 |
Test 5
Verdict: ACCEPTED
| input |
|---|
| 6 3 1 9 9 3 4 |
| correct output |
|---|
| 322 |
| user output |
|---|
| 322 |
Test 6
Verdict: ACCEPTED
| input |
|---|
| 7 9 10 4 3 9 1 1 |
| correct output |
|---|
| 540 |
| user output |
|---|
| 540 |
Test 7
Verdict: ACCEPTED
| input |
|---|
| 8 1 3 8 4 5 10 8 5 |
| correct output |
|---|
| 816 |
| user output |
|---|
| 816 |
Test 8
Verdict: ACCEPTED
| input |
|---|
| 9 9 1 10 3 9 4 6 9 3 |
| correct output |
|---|
| 1251 |
| user output |
|---|
| 1251 |
Test 9
Verdict: ACCEPTED
| input |
|---|
| 10 1803 684 195 6648 4633 1942 72... |
| correct output |
|---|
| 594464350 |
| user output |
|---|
| 594464350 |
Test 10
Verdict: ACCEPTED
| input |
|---|
| 100 1542 4463 7401 8734 2634 865 5... |
| correct output |
|---|
| 124146493451 |
| user output |
|---|
| 124146493451 |
Test 11
Verdict: ACCEPTED
| input |
|---|
| 1000 7778 6074 2376 8595 8243 8930 ... |
| correct output |
|---|
| 12149459777256 |
| user output |
|---|
| 12149459777256 |
Test 12
Verdict: ACCEPTED
| input |
|---|
| 10000 5140 9219 7732 6591 8705 3663 ... |
| correct output |
|---|
| 1274117469101964 |
| user output |
|---|
| 1274117469101964 |
Test 13
Verdict: ACCEPTED
| input |
|---|
| 100000 8489 8136 1789 5914 544 1110 3... |
| correct output |
|---|
| 125270679504052570 |
| user output |
|---|
| 125270679504052570 |