QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#137458 | #2350. Integer Cow | Rd_rainydays# | Compile Error | / | / | C++20 | 2.8kb | 2023-08-10 12:55:22 | 2023-08-10 12:55:25 |
Judging History
你现在查看的是最新测评结果
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2023-08-10 12:55:25]
- 评测
- 测评结果:Compile Error
- 用时:0ms
- 内存:0kb
- [2023-08-10 12:55:22]
- 提交
answer
#include <bits/stdc++.h>
#define sqr(x) ((x) * (x))
using ll = __int128;
struct Point {
double x, y;
Point(double x = 0, double y = 0) : x(x), y(y) { }
};
Point operator + (const Point& a, const Point& b) {
return Point(a.x + b.x, a.y + b.y);
}
Point operator - (const Point& a, const Point& b) {
return Point(a.x - b.x, a.y - b.y);
}
double dist(const Point& a, const Point& b) {
return sqrt(sqr(a.x - b.x) + sqr(a.y - b.y));
}
ll SQRT(ll x) {
// double t = sqrt(x);
// if (fabs(t - ceil(t)) < 1e-6) return (ll)ceil(t);
// if (fabs(t - floor(t)) < 1e-6) return (ll)floor(t);
// return (ll)floor(t);
ll lb = 0, ub = 1e18, ans = 0;
while (lb <= ub) {
ll mid = (lb + ub) / 2;
if (mid * mid <= x) ans = mid, ub = mid - 1;
else lb = mid + 1;
}
return ans;
}
ll read() {
long long x;
scanf("%lld", &x);
return x;
}
void solve() {
ll cx = read(), cy = read(), r = read(), px = read(), py = read();
Point c, p;
c.x = cx, c.y = cy;
p.x = px, p.y = py;
if (sqr(cx - px) + sqr(cy - py) <= sqr(r)) {
printf("0\n%lld %lld\n", (long long)px, (long long)py);
return;
}
Point d = p - c;
double ld = dist(p, c);
// assert(ld > 1e-6);
d.x /= ld, d.y /= ld;
d.x *= r, d.y *= r;
Point o = d + c;
ll r2 = sqr(r);
std::pair<ll, std::pair<ll, ll>> ans(ll(1e30), {-1e9 -1, -1e9-1});
for (int i = -30; i <= 30; i++)
for (int j = -30; j <= 30; j++) {
ll ox = (ll)o.x + i, oy = (ll)o.y + j;
if (sqr(ox - cx) + sqr(oy - cy) > sqr(r)) continue;
ans = std::min(ans, decltype(ans)(sqr(ox - px) + sqr(oy - py), {ox, oy}));
}
}
for (int i = -30; i <= 30; i++) {
ll ox = (ll)o.x + i;
if(r2 - sqr(ox-cx)<0) continue;
ll yyy = SQRT(r2 - sqr(ox-cx));
ll oy = (ll)o.y - yyy;
if(sqr(ox - cx) + sqr(oy - cy) <= sqr(r))
ans = std::min(ans, decltype(ans)(sqr(ox - px) + sqr(oy - py), {ox, oy}));
oy = (ll)o.y + yyy;
if (sqr(ox - cx) + sqr(oy - cy) <= sqr(r))
ans = std::min(ans, decltype(ans)(sqr(ox - px) + sqr(oy - py), {ox, oy}));
}
for (int j = -30; j <= 30; j++) {
ll oy = (ll)o.y + j;
if(r2 - sqr(oy-cy)<0) continue;
ll xxx = SQRT(r2 - sqr(oy-cy));
ll ox = (ll)o.x - xxx;
if (sqr(ox - cx) + sqr(oy - cy) <= sqr(r))
ans = std::min(ans, decltype(ans)(sqr(ox - px) + sqr(oy - py), {ox, oy}));
ox = (ll)o.x + xxx;
if (sqr(ox - cx) + sqr(oy - cy) <= sqr(r))
ans = std::min(ans, decltype(ans)(sqr(ox - px) + sqr(oy - py), {ox, oy}));
}
auto [ox, oy] = ans.second;
assert(ox != -(int)1e9-1 && oy != -(int)1e9-1);
printf("1\n%lld %lld %lld %lld\n", (long long)px, (long long)py, (long long)ox, (long long)oy);
}
signed main() {
int T;
scanf("%d", &T);
while (T--) solve();
return 0;
}
/*
1
0 0 500000000 1000000000 0
*/
Details
answer.code:70:3: error: expected unqualified-id before ‘for’ 70 | for (int i = -30; i <= 30; i++) { | ^~~ answer.code:70:21: error: ‘i’ does not name a type 70 | for (int i = -30; i <= 30; i++) { | ^ answer.code:70:30: error: ‘i’ does not name a type 70 | for (int i = -30; i <= 30; i++) { | ^ answer.code:81:3: error: expected unqualified-id before ‘for’ 81 | for (int j = -30; j <= 30; j++) { | ^~~ answer.code:81:21: error: ‘j’ does not name a type 81 | for (int j = -30; j <= 30; j++) { | ^ answer.code:81:30: error: ‘j’ does not name a type 81 | for (int j = -30; j <= 30; j++) { | ^ answer.code:94:19: error: ‘ans’ was not declared in this scope; did you mean ‘abs’? 94 | auto [ox, oy] = ans.second; | ^~~ | abs In file included from /usr/include/c++/11/cassert:44, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:33, from answer.code:1: answer.code:95:3: error: expected unqualified-id before ‘static_cast’ 95 | assert(ox != -(int)1e9-1 && oy != -(int)1e9-1); | ^~~~~~ answer.code:95:3: error: expected ‘)’ before ‘static_cast’ answer.code:96:9: error: expected constructor, destructor, or type conversion before ‘(’ token 96 | printf("1\n%lld %lld %lld %lld\n", (long long)px, (long long)py, (long long)ox, (long long)oy); | ^ answer.code:97:1: error: expected declaration before ‘}’ token 97 | } | ^ answer.code: In function ‘ll read()’: answer.code:36:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 36 | scanf("%lld", &x); | ~~~~~^~~~~~~~~~~~ answer.code: In function ‘int main()’: answer.code:101:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 101 | scanf("%d", &T); | ~~~~~^~~~~~~~~~