#include <bits/stdc++.h> #include <unistd.h> #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define FORD(i, a, b) for(int i = (a); i >= (b); --i) #define VAR(v, i) __typeof(i) v=(i) #define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i) #define all(v) (v).begin(),(v).end() #define PII pair<int,int> #define mp make_pair #define st first #define nd second #define pb push_back #define lint long long int #define VI vector<int> #define debug(x) {cout <<#x <<" = " <<x <<endl; } #define debug2(x,y) {cerr <<#x <<" = " <<x << ", "<<#y<<" = "<< y <<endl; } #define debug3(x,y,z) {cerr <<#x <<" = " <<x << ", "<<#y<<" = "<< y << ", " << #z << " = " << z <<endl; } #define debugv(x) {{cout <<#x <<" = "; FORE(itt, (x)) cerr <<*itt <<", "; cerr <<endl; }} #define debugt(t,n) {{cerr <<#t <<" = "; FOR(it,0,(n)) cerr <<t[it] <<", "; cerr <<endl; }} #define make( x) int (x); scanf("%d",&(x)); #define make2( x, y) int (x), (y); scanf("%d%d",&(x),&(y)); #define make3(x, y, z) int (x), (y), (z); scanf("%d%d%d",&(x),&(y),&(z)); #define make4(x, y, z, t) int (x), (y), (z), (t); scanf("%d%d%d%d",&(x),&(y),&(z),&(t)); #define makev(v,n) VI (v); FOR(i,0,(n)) { make(a); (v).pb(a);} #define IOS ios_base::sync_with_stdio(0) #define HEAP priority_queue #define read( x) scanf("%d",&(x)); #define read2( x, y) scanf("%d%d",&(x),&(y)); #define read3(x, y, z) scanf("%d%d%d",&(x),&(y),&(z)); #define read4(x, y, z, t) scanf("%d%d%d%d",&(x),&(y),&(z),&(t)); #define readv(v,n) FOR(i,0,(n)) { make(a); (v).pb(a);} #define jeb() fflush(stdout); using namespace std; int n; vector<PII> v; int sgn(int a) { if (a == 0) return 0; if (a < 0) return -1; return 1; } int dbg(PII p1) { cout << "(" << p1.st << ", " << p1.nd << ") "; } PII sum(const PII& p1,const PII& p2) { return {p1.st + p2.st, p1.nd + p2.nd}; } PII zbliz_sie(const PII& p1,const PII& p2) { int s1 = sgn(p1.st-p2.st); int s2 = sgn(p1.nd-p2.nd); return sum(p1, mp(-s1,-s2)); } int main () { read(n); FOR(i,0,n) { make2(a, b); v.pb({a,b}); } FOR(i,0,n) { vector<PII> loc = v; FOR(j,0,n) { if (i != j) { FOR(k,0,n) { if (k != i) { loc[k] = zbliz_sie(loc[k], loc[j]); } } } } lint ans = 0; FOR(i,0,n) ans += loc[i].st * 1LL * loc[i].nd; printf("%lld\n", ans); } }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | #include <bits/stdc++.h> #include <unistd.h> #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define FORD(i, a, b) for(int i = (a); i >= (b); --i) #define VAR(v, i) __typeof(i) v=(i) #define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i) #define all(v) (v).begin(),(v).end() #define PII pair<int,int> #define mp make_pair #define st first #define nd second #define pb push_back #define lint long long int #define VI vector<int> #define debug(x) {cout <<#x <<" = " <<x <<endl; } #define debug2(x,y) {cerr <<#x <<" = " <<x << ", "<<#y<<" = "<< y <<endl; } #define debug3(x,y,z) {cerr <<#x <<" = " <<x << ", "<<#y<<" = "<< y << ", " << #z << " = " << z <<endl; } #define debugv(x) {{cout <<#x <<" = "; FORE(itt, (x)) cerr <<*itt <<", "; cerr <<endl; }} #define debugt(t,n) {{cerr <<#t <<" = "; FOR(it,0,(n)) cerr <<t[it] <<", "; cerr <<endl; }} #define make( x) int (x); scanf("%d",&(x)); #define make2( x, y) int (x), (y); scanf("%d%d",&(x),&(y)); #define make3(x, y, z) int (x), (y), (z); scanf("%d%d%d",&(x),&(y),&(z)); #define make4(x, y, z, t) int (x), (y), (z), (t); scanf("%d%d%d%d",&(x),&(y),&(z),&(t)); #define makev(v,n) VI (v); FOR(i,0,(n)) { make(a); (v).pb(a);} #define IOS ios_base::sync_with_stdio(0) #define HEAP priority_queue #define read( x) scanf("%d",&(x)); #define read2( x, y) scanf("%d%d",&(x),&(y)); #define read3(x, y, z) scanf("%d%d%d",&(x),&(y),&(z)); #define read4(x, y, z, t) scanf("%d%d%d%d",&(x),&(y),&(z),&(t)); #define readv(v,n) FOR(i,0,(n)) { make(a); (v).pb(a);} #define jeb() fflush(stdout); using namespace std; int n; vector<PII> v; int sgn(int a) { if (a == 0) return 0; if (a < 0) return -1; return 1; } int dbg(PII p1) { cout << "(" << p1.st << ", " << p1.nd << ") "; } PII sum(const PII& p1,const PII& p2) { return {p1.st + p2.st, p1.nd + p2.nd}; } PII zbliz_sie(const PII& p1,const PII& p2) { int s1 = sgn(p1.st-p2.st); int s2 = sgn(p1.nd-p2.nd); return sum(p1, mp(-s1,-s2)); } int main () { read(n); FOR(i,0,n) { make2(a, b); v.pb({a,b}); } FOR(i,0,n) { vector<PII> loc = v; FOR(j,0,n) { if (i != j) { FOR(k,0,n) { if (k != i) { loc[k] = zbliz_sie(loc[k], loc[j]); } } } } lint ans = 0; FOR(i,0,n) ans += loc[i].st * 1LL * loc[i].nd; printf("%lld\n", ans); } } |