제출 #118080

#제출 시각아이디문제언어결과실행 시간메모리
118080ryanseeGrowing Vegetable is Fun 3 (JOI19_ho_t3)C++14
75 / 100
781 ms10752 KiB
#define LOCAL #include "bits/stdc++.h" using namespace std; #define FAST ios_base::sync_with_stdio(false); cin.tie(0); #define LLINF ((long long) 1e18)//1234567890987654321 #define INF 1234567890ll #define pb push_back #define eb emplace_back #define ins insert #define f first #define s second #define db 0 #define EPS (1e-7) //0.0000001 the value #define PI (acos((ld)-1.0)) #define MAXN (300006) #define ll long long int #define ld long double mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); //can be used by calling rng() or shuffle(A, A+n, rng) #define FOR(ii, ss, ee) for(ll ii = ss; ii < (ll)ee; ++ii) #define space " " #define cbr cerr << "hi\n" #define mmst(x, v) memset((x), v, sizeof ((x))) #define siz(x) ((ll)x.size()) #define ph push #define btinpct(x) __builtin_popcountll((x)) #define all(x) (x).begin(), (x).end() #define lbd(x, y) lower_bound(all(x), y) #define ubd(x, y) upper_bound(all(x), y) typedef pair <ll, ll> pi; typedef pair <ll, pi> spi; typedef pair <pi, pi> dpi; inline ll rand(ll x, ll y) { ++y; return (rng() % (y-x)) + x; } //inclusivesss string to_string(char c) {string s(1,c);return s;}string to_string(bool b){return (b ? "true" : "false");}template <typename A, typename B>string to_string(pair<A, B> p) {return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";}template <typename A>string to_string(A v) {bool first = true;string res = "{";for (const auto &x : v) {if (!first) {res += ", ";}first = false;res += to_string(x);}res += "}";return res;}void degug_out() { cerr << endl; }template <typename Head, typename... Tail>void degug_out(Head H, Tail... T) {cerr << " " << to_string(H);degug_out(T...);}inline ll gcd(ll a,ll b){if(a>b)swap(a,b);if(a==0)return b;return gcd(b%a,a);} #ifdef LOCAL #define degug(...) cerr << "[" << #__VA_ARGS__ << "]:", degug_out(__VA_ARGS__) #else #define degug(...) 42 #define cerr if(0)cout #endif ll n,dp[2][406][406][4]; // size of green,red& yellow, // to do bottom up u have to set unreachable states to inf. string A; vector<ll>G,R,Y; ll costG(ll l,ll x) { ll ans=0; FOR(i,0,l){ if(G[i]>x)ans++; } return ans; } ll costR(ll l,ll x) { ll ans=0; FOR(i,0,l){ if(R[i]>x)ans++; } return ans; } ll costY(ll l,ll x) { ll ans=0; FOR(i,0,l){ if(Y[i]>x)ans++; } return ans; } void degugg(ll g) { return; cerr<<g<<": "; FOR(j,0,siz(R)){ FOR(k,0,siz(Y)){ FOR(p,0,3){ cerr<<g<<' '<<j<<' '<<k<<' '<<p<<' '<<dp[g&1][j][k][p]<<'\n'; } } } } void check(){ if(siz(G)>(ll)ceill(n/(ld)2)||siz(R)>(ll)ceill(n/(ld)2)||siz(Y)>(ll)ceill(n/(ld)2)){cout<<"-1\n";exit(0);} } int main() { FAST cin>>n>>A; // vector<ll>G,R,Y; FOR(i,0,siz(A))if(A[i]=='G')G.pb(i);else if(A[i]=='R')R.pb(i);else Y.pb(i); check(); FOR(i,0,2)FOR(j,0,406)FOR(k,0,406)FOR(l,0,4)dp[i][j][k][l]=LLINF; // where p is a flag // p=0 means put green // p=1 means put red // p=2 means put yellow /* set base case */ dp[0][0][0][0]=dp[0][0][0][1]=dp[0][0][0][2]=0; /* */ FOR(i,0,siz(G)+1) { degugg(i); FOR(j,0,siz(R)+1) FOR(k,0,siz(Y)+1) FOR(p,0,3){ if(i==0&&j==0&&k==0){ continue; } dp[i&1][j][k][p]=LLINF; if(p==0&&i>0){ dp[i&1][j][k][p]=min(dp[i&1][j][k][p],min(dp[(i&1)^1][j][k][1],dp[(i&1)^1][j][k][2])+costR(j,G[i-1])+costY(k,G[i-1])); } if(p==1&&j>0){ dp[i&1][j][k][p]=min(dp[i&1][j][k][p],min(dp[i&1][j-1][k][0],dp[i&1][j-1][k][2])+costG(i,R[j-1])+costY(k,R[j-1])); } if(p==2&&k>0){ dp[i&1][j][k][p]=min(dp[i&1][j][k][p],min(dp[i&1][j][k-1][0],dp[i&1][j][k-1][1])+costG(i,Y[k-1])+costR(j,Y[k-1])); } } } cout<<min({dp[siz(G)&1][siz(R)][siz(Y)][0],dp[siz(G)&1][siz(R)][siz(Y)][1],dp[siz(G)&1][siz(R)][siz(Y)][2]}); }

컴파일 시 표준 에러 (stderr) 메시지

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:19:25: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 #define FOR(ii, ss, ee) for(ll ii = ss; ii < (ll)ee; ++ii)
                         ^
joi2019_ho_t3.cpp:82:2: note: in expansion of macro 'FOR'
  FOR(i,0,siz(A))if(A[i]=='G')G.pb(i);else if(A[i]=='R')R.pb(i);else Y.pb(i); check();
  ^~~
joi2019_ho_t3.cpp:82:78: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  FOR(i,0,siz(A))if(A[i]=='G')G.pb(i);else if(A[i]=='R')R.pb(i);else Y.pb(i); check();
                                                                              ^~~~~
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