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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#105624 | #6395. Equation Discovering | woyouxiangbaile# | WA | 376ms | 103360kb | C++14 | 4.5kb | 2023-05-14 15:55:39 | 2023-05-14 15:55:40 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define rep(i, d, u) for(int i = d; i <= u; ++i)
#define dep(i, u, d) for(int i = u; i >= d; --i)
#define cep(n) while(n--)
#define gep(i, a) for(int i = firs[a]; i; i = neig[i])
int ured() {
int re = 0;
char ch;
do {
ch = getchar();
} while('9' < ch || ch < '0');
do {
re = re * 10 + (ch ^ '0');
} while('0' <= (ch = getchar()) && ch <= '9');
return re;
}
void uwit(int da) {
int ch[21], cn = 0;
do {
ch[++cn] = da - da / 10 * 10;
} while(da /= 10);
do {
putchar('0' ^ ch[cn]);
} while(--cn);
}
const int _maxn = 20, _maxs = 5000011;
const long double _epsn = 0.00001, _epss = 0.0000001;
int n;
long double x[_maxn], y[_maxn];
struct node {
int cp;
long double da[_maxn];
} atno, queu[_maxs], tono;
node operator+(node le, node ri) {
node re;
re . cp = le . cp + ri . cp + 2;
rep(i, 0, n - 1) {
re . da[i] = le . da[i] + ri . da[i];
}
return re;
}
node operator-(node le, node ri) {
node re;
re . cp = le . cp + ri . cp + 2;
rep(i, 0, n - 1) {
re . da[i] = le . da[i] - ri . da[i];
}
return re;
}
node operator*(node le, node ri) {
node re;
re . cp = le . cp + ri . cp + 2;
rep(i, 0, n - 1) {
re . da[i] = le . da[i] * ri . da[i];
}
return re;
}
node operator/(node le, node ri) {
node re;
re . cp = le . cp + ri . cp + 2;
rep(i, 0, n - 1) {
re . da[i] = le . da[i] / ri . da[i];
}
return re;
}
node qsin(node da) {
node re;
re . cp = da . cp + 1;
rep(i, 0, n - 1) {
re . da[i] = sin(da . da[i]);
}
return re;
}
node qcos(node da) {
node re;
re . cp = da . cp + 1;
rep(i, 0, n - 1) {
re . da[i] = cos(da . da[i]);
}
return re;
}
int head, tail, stat[_maxs], lson[_maxs], rson[_maxs];
bool operator<(node le, node ri) {
if(le . cp != ri . cp) {
return le . cp < ri . cp;
}
rep(i, 0, n - 1) {
if(fabs(le . da[i] - ri . da[i]) > _epss) {
return le . da[i] < ri . da[i];
}
}
return 0;
}
set<node> sets;
bool pdif;
vector<int> dats[10];
void outp(int at) {
putchar('(');
if(stat[at] == 1) {
outp(lson[at]), putchar('+'), outp(rson[at]);
} else if(stat[at] == 2) {
outp(lson[at]), putchar('-'), outp(rson[at]);
} else if(stat[at] == 3) {
outp(lson[at]), putchar('*'), outp(rson[at]);
} else if(stat[at] == 4) {
outp(lson[at]), putchar('/'), outp(rson[at]);
} else if(stat[at] == 5) {
putchar('s'), putchar('i'), putchar('n'), outp(lson[at]);
} else if(stat[at] == 6) {
putchar('c'), putchar('o'), putchar('s'), outp(lson[at]);
} else {
putchar('x');
}
putchar(')');
}
int main() {
n = ured();
rep(i, 0, n - 1) {
scanf("%Lf%Lf", &x[i], &y[i]), queu[1] . da[i] = x[i];
}
sets . insert(queu[++tail]);
while(head < tail) {
pdif = 1, atno = queu[++head];
rep(i, 0, n - 1) {
if(fabs(atno . da[i] - y[i]) > _epsn) {
pdif = 0;
break;
}
}
if(pdif) {
outp(head), putchar('\n');
break;
}
dats[atno . cp] . push_back(head);
rep(i, 0, 7 - atno . cp) {
for(int j : dats[i]) {
if(!sets . count(tono = atno + queu[j])) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 1, lson[tail] = head, rson[tail] = j;
}
if(!sets . count(tono = atno - queu[j])) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 2, lson[tail] = head, rson[tail] = j;
}
if(!sets . count(tono = queu[j] - atno)) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 2, lson[tail] = j, rson[tail] = head;
}
if(!sets . count(tono = atno * queu[j])) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 3, lson[tail] = head, rson[tail] = j;
}
pdif = 1;
rep(k, 0, n - 1) {
if(fabs(queu[j] . da[k]) < _epss) {
pdif = 0;
break;
}
}
if(pdif && !sets . count(tono = atno / queu[j])) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 4, lson[tail] = head, rson[tail] = j;
}
pdif = 1;
rep(k, 0, n - 1) {
if(fabs(atno . da[k]) < _epss) {
pdif = 0;
break;
}
}
if(pdif && !sets . count(tono = queu[j] / atno)) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 4, lson[tail] = j, rson[tail] = head;
}
}
}
if(atno . cp <= 8 && !sets . count(tono = qsin(atno))) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 5, lson[tail] = head;
}
if(atno . cp <= 8 && !sets . count(tono = qcos(atno))) {
sets . insert(tono), queu[++tail] = tono, stat[tail] = 6, lson[tail] = head;
}
}
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 9760kb
input:
3 1.000000 1.000000 2.000000 4.000000 3.000000 9.000000
output:
((x)*(x))
result:
ok great!!
Test #2:
score: 0
Accepted
time: 1ms
memory: 12960kb
input:
3 0.618000 1.517072 0.314000 3.132637 1.414000 0.494016
output:
((sin(x))/((x)*(x)))
result:
ok great!!
Test #3:
score: 0
Accepted
time: 1ms
memory: 9616kb
input:
5 77.685777 233.057331 -66.445083 -199.335249 79.966717 239.900151 84.982130 254.946390 -31.528900 -94.586700
output:
(((x)+(x))+(x))
result:
ok great!!
Test #4:
score: 0
Accepted
time: 6ms
memory: 13684kb
input:
5 25.032427 -0.100652 38.727324 1.658518 27.684334 -0.669555 64.282391 8.275303 52.640700 -0.962660
output:
((sin(x))/(cos(x)))
result:
ok great!!
Test #5:
score: 0
Accepted
time: 34ms
memory: 23220kb
input:
5 78.611917 -0.992212 -29.857271 1.011993 -75.513655 1.006611 68.512394 1.145128 7.961096 0.881661
output:
(((sin(x))*(sin(x)))+(cos(x)))
result:
ok great!!
Test #6:
score: 0
Accepted
time: 243ms
memory: 70292kb
input:
5 -78.733375 0.503570 -20.187183 0.735779 -38.984992 0.730890 47.859232 0.622831 -19.657164 0.641512
output:
(sin(sin(cos(cos(x)))))
result:
ok great!!
Test #7:
score: 0
Accepted
time: 3ms
memory: 12616kb
input:
5 3.241091 -32.628130 -83.514144 86.463432 33.586619 40.691607 41.123543 -147.352644 26.896326 27.404018
output:
((x)/(sin(x)))
result:
ok great!!
Test #8:
score: 0
Accepted
time: 376ms
memory: 103360kb
input:
20 -4.908422 -0.693287 3.569189 0.328182 1.946572 -0.667466 6.515336 -0.829948 -1.394076 0.752980 6.722989 0.831881 1.241795 0.835231 -2.443177 -0.143098 -4.180762 -0.803482 1.511247 0.589509 0.627755 0.554244 -1.865604 -0.470029 -4.756347 -0.656984 1.850611 -0.426016 6.580133 -0.474416 6.861815 -0....
output:
(sin(sin((x)/(sin((x)/((x)*(x)))))))
result:
ok great!!
Test #9:
score: 0
Accepted
time: 13ms
memory: 15708kb
input:
20 76.797930 0.000002 -76.263778 -0.000002 55.449039 0.000006 10.462093 0.000873 -78.051671 -0.000002 -52.781249 -0.000007 47.053973 0.000010 96.629212 0.000001 -40.697847 -0.000015 31.141805 0.000033 -87.087384 -0.000002 -54.709885 -0.000006 -65.741847 -0.000004 -87.430820 -0.000001 9.420126 0.0011...
output:
(((x)/(x))/(((x)*(x))*(x)))
result:
ok great!!
Test #10:
score: 0
Accepted
time: 4ms
memory: 10292kb
input:
20 24.490647 23.891773 17.327799 16.329001 21.204241 21.912414 83.489542 84.461510 -55.546573 -54.703972 -7.608368 -8.578356 -3.286697 -3.142101 -66.606831 -66.014954 -44.896454 -45.688502 97.541741 97.389961 -59.986043 -59.694554 57.723989 58.646803 -99.857351 -99.233536 29.134673 28.376609 -98.668...
output:
((sin(x))+(x))
result:
ok great!!
Test #11:
score: 0
Accepted
time: 4ms
memory: 10412kb
input:
20 89.594917 88.596688 -45.187625 -44.253669 97.451471 97.513530 35.078537 35.576300 82.504351 81.771201 -49.755211 -50.243625 -23.019693 -23.876242 -45.247155 -44.293590 75.324114 75.398156 78.533049 78.526282 99.112156 100.100628 31.983437 31.445903 71.251578 70.407388 -44.178279 -43.983549 -25.28...
output:
((x)-(sin(x)))
result:
ok great!!
Test #12:
score: 0
Accepted
time: 37ms
memory: 22272kb
input:
20 16.664144 7.850741 44.708237 22.196248 -10.852343 1.533223 -42.713221 -12.119419 -27.815914 -11.038511 31.908696 13.299065 -82.394044 40.761558 -37.317157 -12.907073 -35.369997 17.659068 93.569121 -45.722539 -30.589159 -15.242258 16.180069 6.553209 56.572831 1.366451 99.591187 -47.440823 12.73229...
output:
(((sin(x))*(x))*(cos(x)))
result:
ok great!!
Test #13:
score: 0
Accepted
time: 3ms
memory: 9804kb
input:
20 -583.519562 0.000000 -169.653469 0.000000 372.798856 0.000000 180.084282 0.000000 139.388742 0.000000 -648.300263 0.000000 -859.523046 0.000000 -267.278551 0.000000 635.554372 0.000000 299.925737 0.000000 -628.299469 0.000000 169.393099 0.000000 556.144161 0.000000 -881.876627 0.000000 328.692044...
output:
((x)-(x))
result:
ok great!!
Test #14:
score: 0
Accepted
time: 1ms
memory: 5572kb
input:
20 746.491049 746.491049 414.031997 414.031997 -975.051138 -975.051138 45.313068 45.313068 -181.090458 -181.090458 119.607074 119.607074 245.794647 245.794647 -794.156219 -794.156219 461.647608 461.647608 -392.604379 -392.604379 384.522118 384.522118 -461.749513 -461.749513 766.462890 766.462890 244...
output:
(x)
result:
ok great!!
Test #15:
score: 0
Accepted
time: 38ms
memory: 23468kb
input:
20 4.278335 0.092599 3.559350 0.559919 -2.517239 0.403581 -0.955317 0.182475 3.048015 0.888213 -0.638367 0.393205 -2.188885 0.183959 -0.367275 0.597938 1.106453 0.948186 0.339096 0.971773 -0.678258 0.364003 4.364111 0.060002 -0.671364 0.369012 -2.777257 0.600136 1.617698 0.909755 -3.400784 0.950952 ...
output:
(sin((sin(x))+((x)/(x))))
result:
ok great!!
Test #16:
score: 0
Accepted
time: 257ms
memory: 78368kb
input:
20 3.692126 -0.260752 0.663419 1.200876 1.167172 0.874743 4.852602 0.631308 3.373109 -0.334749 4.749943 0.529545 -2.549440 -0.245748 -1.158832 0.881804 4.115764 -0.040747 -3.401216 -0.330886 -4.320685 0.119451 -0.070540 1.332133 -4.666465 0.446117 -4.720184 0.499803 -1.731319 0.332854 4.232513 0.046...
output:
((sin(sin(cos((x)/(x)))))+(sin(cos(x))))
result:
ok great!!
Test #17:
score: 0
Accepted
time: 359ms
memory: 98700kb
input:
20 1.462467 0.804429 -2.922001 0.192241 4.580542 -0.620639 -0.475001 -0.799291 -1.988595 -0.234001 1.262913 0.840075 -3.176510 -0.034797 2.030387 0.180297 -3.244547 -0.099928 -3.321420 -0.164361 -0.538138 -0.818609 2.485817 -0.209990 -0.282936 -0.652106 0.964792 0.840607 -1.300754 -0.837872 4.323400...
output:
(sin(sin((sin(sin((x)+(x))))+(sin(x)))))
result:
ok great!!
Test #18:
score: -100
Wrong Answer
time: 219ms
memory: 79424kb
input:
20 -1.290592 0.818752 0.639318 0.516086 -4.576452 0.791075 2.349231 0.829843 3.053369 0.646833 -4.276424 0.836563 -4.295090 0.835111 1.704429 0.790551 1.694925 0.788364 0.763954 0.527671 -0.477936 0.769603 0.395468 0.525360 0.686854 0.519231 -1.940048 0.637497 2.188388 0.840879 1.028990 0.584344 3.9...
output:
(sin(cos(sin(((x)/(x))+(x)))))
result:
wrong answer div a small number