CSES - DatatÃ¤hti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: eerosahlberg Submission time: 2021-10-13 09:34:17 Language: CPython3 Status: READY Result: 100
Feedback
groupverdictscore
#1ACCEPTED15
#2ACCEPTED20
#3ACCEPTED65
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1details
#2ACCEPTED0.03 s2details
#3ACCEPTED0.03 s3details

### Code

```inp = input().split()

n = int(inp[0])
t = int(inp[1])

kierros = 0
value = 0

c = []

for i in range(t):
cords = input().split()

y = int(cords[0])
x = int(cords[1])

if(x<=n/2 and y>=x and y <= n-x+1):
kierros = x

if(kierros!=1):
#value = (kierros-1)*4*(n-1)-(kierros-2)*8 + (y-x+1)
value = -4*(kierros-1)*(kierros-n-1) + (y-x+1)
else:
value = (y-x+1)
elif(x>n/2 and y>=n-x+1 and y <= x):
kierros = n-x+1

if(kierros!=1):
#value = (kierros-1)*4*(n-1)-(kierros-2)*8 + (n-2*(kierros-1)) + ((n-2*(kierros-1))-1) + (n-y-(kierros-1))
value = -4*(kierros-1)*(kierros-n-1) + (n-2*(kierros-1)) + ((n-2*(kierros-1))-1) + (n-y-(kierros-1))

else:
value = n + (n-1) + (n-y)
elif(y<=n/2):
kierros = y

if(kierros!=1):
#value = (kierros-1)*4*(n-1)-(kierros-2)*8 + (n-2*(kierros-1)) + 2*((n-2*(kierros-1))-1) + (n-x-y+1)
value = -4*(kierros-1)*(kierros-n-1) + (n-2*(kierros-1)) + 2*((n-2*(kierros-1))-1) + (n-x-y+1)

else:
value = n + 2*(n-1) + (n-x)
else:
kierros = n-y+1

if(kierros!=1):
#value = (kierros-1)*4*(n-1)-(kierros-2)*8 + (n-2*(kierros-1)) - ((n-x+1)-y)
value = -4*(kierros-1)*(kierros-n-1) + (n-2*(kierros-1)) - ((n-x+1)-y)

else:
value=n-((n-x+1)-y)

print(value)

```

### Test details

#### Test 1

Group: 1

Verdict: ACCEPTED

input
10 100
1 1
1 2
1 3
1 4
...

correct output
1
36
35
34
33
...

user output
1
36
35
34
33
...

#### Test 2

Group: 2

Verdict: ACCEPTED

input
1000 1000
371 263
915 322
946 880
53 738
...

correct output
773533
312166
206053
200080
593922
...

user output
773533
312166
206053
200080
593922
...

#### Test 3

Group: 3

Verdict: ACCEPTED

input
1000000000 1000
177757853 827347032
409613589 419171337
739269360 256524697
328695530 896842209
...

correct output
571375684522141210
967321186816598569
762879105851175000
370065046779516790
936897883750373771
...

user output
571375684522141210
967321186816598569
762879105851175000
370065046779516790
936897883750373771
...