Task: | Spiraali |
Sender: | xenial |
Submission time: | 2021-10-05 20:05:36 +0300 |
Language: | C++ (C++17) |
Status: | READY |
Result: | 35 |
group | verdict | score |
---|---|---|
#1 | ACCEPTED | 15 |
#2 | ACCEPTED | 20 |
#3 | WRONG ANSWER | 0 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 0.01 s | 1 | details |
#2 | ACCEPTED | 0.01 s | 2 | details |
#3 | WRONG ANSWER | 0.01 s | 3 | details |
Compiler report
input/code.cpp: In function 'void set_io(std::__cxx11::string)': input/code.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen((filename + ".in").c_str(), "r", stdin); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ input/code.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen((filename + ".out").c_str(), "w", stdout); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ input/code.cpp: In function 'int main()': input/code.cpp:64:12: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized] ll ans = start; ^~~
Code
#include <bits/stdc++.h>using namespace std;typedef long long ll;#define all(x) (x).begin(), (x).end()#define pb push_back#define fi first#define se second#define sz size#define rsz resizevoid set_io(string filename = "") {ios::sync_with_stdio(0);cin.tie(0);if (filename != "") {freopen((filename + ".in").c_str(), "r", stdin);freopen((filename + ".out").c_str(), "w", stdout);}}int main() {set_io("");ll n, t; cin >> n >> t;int mid = n / 2;while (t--) {int y, x; cin >> y >> x;int xdist = n - x + 1;int ydist = n - y + 1;int ring = 4 * (n - 1), rindex = min(min(x, xdist), min(y, ydist)), dx, dy, offset;if (x <= mid) {if (y <= mid) {dx = x - min(x, y) + 1; dy = y - min(x, y) + 1;if (dx != 1) offset = -8;else offset = 0;} else {offset = -2;dx = x - min(x, ydist) + 1; dy = y + min(x, ydist) - 1;}} else {if (y <= mid) {offset = -6;dx = x + min(xdist, y) - 1; dy = y - min(xdist, y) + 1;} else {offset = -4;dx = x + min(xdist, ydist) - 1; dy = y + min(xdist, ydist) - 1;}}int start;if (dx == 1) {start = dy;} else if (dx == n) {start = 2 * n + n - 1 - dy;} else if (dy == 1) {start = ring + 2 - dx;} else if (dy == n) {start = n - 1 + dx;}int base = ring + offset;ll ans = start;ans += (rindex - 1) * (base + base - (rindex - 2) * 8) / 2;cout << ans << endl;}}
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 ... Truncated |
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 ... Truncated |
Test 3
Group: 3
Verdict: WRONG ANSWER
input |
---|
1000000000 1000 177757853 827347032 409613589 419171337 739269360 256524697 328695530 896842209 ... |
correct output |
---|
571375684522141210 967321186816598569 762879105851175000 370065046779516790 936897883750373771 ... |
user output |
---|
-448993766 199860777 1054060632 -1995122826 -809395829 ... Truncated |