#include <bits/stdc++.h> using namespace std; #define PII pair<int, int> #define PLL pair<LL, LL> #define VI vector<int> #define VPII vector<PII> #define LL long long #define LD long double #define f first #define s second #define MP make_pair #define PB push_back #define endl '\n' #define ALL(c) (c).begin(), (c).end() #define SIZ(c) (int)(c).size() #define REP(i, n) for(int i = 0; i < (int)(n); ++i) #define FOR(i, b, e) for(int i = (b); i <= (int)(e); ++i) #define FORD(i, b, e) for(int i = (b); i >= (int)(e); --i) #define sim template<class n sim, class s> ostream & operator << (ostream &p, pair<n, s> x) {return p << "<" << x.f << ", " << x.s << ">";} sim> auto operator << (ostream &p, n y) -> typename enable_if<!is_same<n, string>::value, decltype(y.begin(), p)>::type {int o = 0; p << "{"; for(auto c: y) {if(o++) p << ", "; p << c;} return p << "}";} void dor() {cerr << endl;} sim, class...s> void dor(n p, s...y) {cerr << p << " "; dor(y...);} sim, class s> void mini(n &p, s y) {if(p>y) p = y;} sim, class s> void maxi(n &p, s y) {if(p<y) p = y;} #ifdef DEB #define debug(...) dor(__FUNCTION__, ":", __LINE__, ": ", __VA_ARGS__) #else #define debug(...) #endif #define PLL pair<LL, LL> #define I(x) #x " =", (x), " " #define A(a, i) #a "[" #i " =", i, "] =", a[i], " " // ****************************************************************************** const int MXN = 4e5+5; int type[MXN]; PLL que[MXN]; LL value[MXN]; map<LL, VI> where; // do usuwania, gdzie są już dodane wartości const int BASE = 1 << 19; LL mx[BASE*2]; LL mi[BASE*2]; LL sum[BASE*2]; int cnt[BASE*2]; bool is_on[BASE*2]; void insert(int i, LL val) { i += BASE; mx[i] = val; mi[i] = val == 0 ? 1e18 : val; sum[i] = val; cnt[i] = val != 0; i /= 2; while(i) { mx[i] = max(mx[i*2], mx[i*2+1]); mi[i] = min(mi[i*2], mi[i*2+1]); sum[i] = sum[i*2] + sum[i*2+1]; cnt[i] = cnt[i*2] + cnt[i*2+1]; i /= 2; } } void turn_on(int i) { insert(i, value[i]); } void turn_off(int i) { insert(i, 0); } LL mi_val(int i) { return is_on[i] ? mi[i] : 1e18; } int first_bigger(LL val, int p = 0, int k = BASE-1, int id = 1) { if(p == k)return p; int mid = (p+k)/2; if(mx[id * 2] * is_on[id * 2] > val)return first_bigger(val, p, mid, id*2); return first_bigger(val, mid+1, k, id*2+1); } int last_less_eq(LL val, int p = 0, int k = BASE-1, int id = 1) { if(p == k)return p; int mid = (p+k)/2; if(mi_val(id * 2 + 1) <= val)return last_less_eq(val, mid+1, k, id*2+1); return last_less_eq(val, p, mid, id*2); } LL left_sum(int k) // suma wszystkich do k włącznie { k += BASE + 1; LL res = 0; while(k) { if(k % 2 == 1)res += sum[k-1] * is_on[k-1]; k /= 2; } return res; } VI to_process; VI zgaszone; VI do_poprawienia; void add_zgas(int i) // nigdy nie będę pytał o to co jest pod zgaszonym gdy jest zgaszony { to_process.PB(i); } void popraw(int i) { i /= 2; while(i) { mx[i] = max(is_on[i*2] * mx[i*2], is_on[i*2+1] * mx[i*2+1]); mi[i] = min(mi_val(i*2), mi_val(i*2+1)); sum[i] = is_on[i*2] * sum[i*2] + is_on[i*2+1] * sum[i*2+1]; cnt[i] = is_on[i*2] * cnt[i*2] + is_on[i*2+1] * cnt[i*2+1]; i /= 2; } } void do_work(int a, int b) { for(auto i : to_process) { is_on[i] = 0; zgaszone.PB(i); } popraw(a); popraw(b); do_poprawienia.PB(a); do_poprawienia.PB(b); to_process = {}; } void rollback() { for(auto i : zgaszone) is_on[i] = 1; for(auto i: do_poprawienia) { popraw(i); } do_poprawienia.clear(); zgaszone.clear(); } PLL get_segment(int k, LL val) // znajdź maksymalne a t. że suma([a, b]) >= val { // zwraca (suma([a, b]), b-a+1) if(left_sum(k) < val) { return MP(-1, -1); } int i = k + BASE + 1; LL mam = 0; int ile = 0; while(1) { if(i % 2 == 1) { mam += sum[i-1] * is_on[i-1]; ile += cnt[i-1] * is_on[i-1]; if(mam >= val) { i--; break; } add_zgas(i-1); } i /= 2; } while(i < BASE) { if(mam - sum[i*2] * is_on[i*2] >= val) { mam -= sum[i*2] * is_on[i*2]; ile -= cnt[i*2] * is_on[i*2]; i = i * 2 + 1; } else { add_zgas(i*2+1); i *= 2; } } add_zgas(i); do_work(i, k+BASE+1); return MP(mam, ile); } int main() { int n; scanf("%d", &n); REP(i, BASE*2) { mi[i] = 1e18; is_on[i] = 1; } FOR(i, 1, n) { scanf("%lld", &que[i].f); type[i] = 2; } int q; scanf("%d", &q); FOR(i, n+1, n+q) { scanf("%d", &type[i]); if(type[i] == 1)scanf("%lld%lld", &que[i].f, &que[i].s); else scanf("%lld", &que[i].f); } vector<PLL> adds; type[0] = 2; que[0].f = 1.1e18; q = q+n; // traktujemy wszystko jako zapytania FOR(i, 0, q) if(type[i] == 2) adds.PB(MP(que[i].f, i)); sort(ALL(adds)); REP(i, adds.size()) { value[i+1] = adds[i].f; que[adds[i].s].f = i+1; } FOR(i, 0, q) { if(type[i] == 2) { int idx = que[i].f; where[value[idx]].PB(idx); turn_on(idx); } if(type[i] == 3) { LL val = que[i].f; // assert(where[val].size()); int idx = where[val].back(); where[val].pop_back(); turn_off(idx); } if(type[i] == 1) { LL start = que[i].f; LL end = que[i].s; int res = 0; if(start >= end){puts("0"); continue;} while(1) { if(mi[1] >= start){puts("-1"); break;} int next_pos = first_bigger(start-1); LL next_value = min(value[next_pos]+1, end); int last_add_pos = last_less_eq(start-1); auto to_add = get_segment(last_add_pos, next_value - start); if(to_add.f == -1) { puts("-1"); break; } start += to_add.f; res += to_add.s; if(start >= end) { printf("%d\n", res); break; } } rollback(); } } }
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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 | #include <bits/stdc++.h> using namespace std; #define PII pair<int, int> #define PLL pair<LL, LL> #define VI vector<int> #define VPII vector<PII> #define LL long long #define LD long double #define f first #define s second #define MP make_pair #define PB push_back #define endl '\n' #define ALL(c) (c).begin(), (c).end() #define SIZ(c) (int)(c).size() #define REP(i, n) for(int i = 0; i < (int)(n); ++i) #define FOR(i, b, e) for(int i = (b); i <= (int)(e); ++i) #define FORD(i, b, e) for(int i = (b); i >= (int)(e); --i) #define sim template<class n sim, class s> ostream & operator << (ostream &p, pair<n, s> x) {return p << "<" << x.f << ", " << x.s << ">";} sim> auto operator << (ostream &p, n y) -> typename enable_if<!is_same<n, string>::value, decltype(y.begin(), p)>::type {int o = 0; p << "{"; for(auto c: y) {if(o++) p << ", "; p << c;} return p << "}";} void dor() {cerr << endl;} sim, class...s> void dor(n p, s...y) {cerr << p << " "; dor(y...);} sim, class s> void mini(n &p, s y) {if(p>y) p = y;} sim, class s> void maxi(n &p, s y) {if(p<y) p = y;} #ifdef DEB #define debug(...) dor(__FUNCTION__, ":", __LINE__, ": ", __VA_ARGS__) #else #define debug(...) #endif #define PLL pair<LL, LL> #define I(x) #x " =", (x), " " #define A(a, i) #a "[" #i " =", i, "] =", a[i], " " // ****************************************************************************** const int MXN = 4e5+5; int type[MXN]; PLL que[MXN]; LL value[MXN]; map<LL, VI> where; // do usuwania, gdzie są już dodane wartości const int BASE = 1 << 19; LL mx[BASE*2]; LL mi[BASE*2]; LL sum[BASE*2]; int cnt[BASE*2]; bool is_on[BASE*2]; void insert(int i, LL val) { i += BASE; mx[i] = val; mi[i] = val == 0 ? 1e18 : val; sum[i] = val; cnt[i] = val != 0; i /= 2; while(i) { mx[i] = max(mx[i*2], mx[i*2+1]); mi[i] = min(mi[i*2], mi[i*2+1]); sum[i] = sum[i*2] + sum[i*2+1]; cnt[i] = cnt[i*2] + cnt[i*2+1]; i /= 2; } } void turn_on(int i) { insert(i, value[i]); } void turn_off(int i) { insert(i, 0); } LL mi_val(int i) { return is_on[i] ? mi[i] : 1e18; } int first_bigger(LL val, int p = 0, int k = BASE-1, int id = 1) { if(p == k)return p; int mid = (p+k)/2; if(mx[id * 2] * is_on[id * 2] > val)return first_bigger(val, p, mid, id*2); return first_bigger(val, mid+1, k, id*2+1); } int last_less_eq(LL val, int p = 0, int k = BASE-1, int id = 1) { if(p == k)return p; int mid = (p+k)/2; if(mi_val(id * 2 + 1) <= val)return last_less_eq(val, mid+1, k, id*2+1); return last_less_eq(val, p, mid, id*2); } LL left_sum(int k) // suma wszystkich do k włącznie { k += BASE + 1; LL res = 0; while(k) { if(k % 2 == 1)res += sum[k-1] * is_on[k-1]; k /= 2; } return res; } VI to_process; VI zgaszone; VI do_poprawienia; void add_zgas(int i) // nigdy nie będę pytał o to co jest pod zgaszonym gdy jest zgaszony { to_process.PB(i); } void popraw(int i) { i /= 2; while(i) { mx[i] = max(is_on[i*2] * mx[i*2], is_on[i*2+1] * mx[i*2+1]); mi[i] = min(mi_val(i*2), mi_val(i*2+1)); sum[i] = is_on[i*2] * sum[i*2] + is_on[i*2+1] * sum[i*2+1]; cnt[i] = is_on[i*2] * cnt[i*2] + is_on[i*2+1] * cnt[i*2+1]; i /= 2; } } void do_work(int a, int b) { for(auto i : to_process) { is_on[i] = 0; zgaszone.PB(i); } popraw(a); popraw(b); do_poprawienia.PB(a); do_poprawienia.PB(b); to_process = {}; } void rollback() { for(auto i : zgaszone) is_on[i] = 1; for(auto i: do_poprawienia) { popraw(i); } do_poprawienia.clear(); zgaszone.clear(); } PLL get_segment(int k, LL val) // znajdź maksymalne a t. że suma([a, b]) >= val { // zwraca (suma([a, b]), b-a+1) if(left_sum(k) < val) { return MP(-1, -1); } int i = k + BASE + 1; LL mam = 0; int ile = 0; while(1) { if(i % 2 == 1) { mam += sum[i-1] * is_on[i-1]; ile += cnt[i-1] * is_on[i-1]; if(mam >= val) { i--; break; } add_zgas(i-1); } i /= 2; } while(i < BASE) { if(mam - sum[i*2] * is_on[i*2] >= val) { mam -= sum[i*2] * is_on[i*2]; ile -= cnt[i*2] * is_on[i*2]; i = i * 2 + 1; } else { add_zgas(i*2+1); i *= 2; } } add_zgas(i); do_work(i, k+BASE+1); return MP(mam, ile); } int main() { int n; scanf("%d", &n); REP(i, BASE*2) { mi[i] = 1e18; is_on[i] = 1; } FOR(i, 1, n) { scanf("%lld", &que[i].f); type[i] = 2; } int q; scanf("%d", &q); FOR(i, n+1, n+q) { scanf("%d", &type[i]); if(type[i] == 1)scanf("%lld%lld", &que[i].f, &que[i].s); else scanf("%lld", &que[i].f); } vector<PLL> adds; type[0] = 2; que[0].f = 1.1e18; q = q+n; // traktujemy wszystko jako zapytania FOR(i, 0, q) if(type[i] == 2) adds.PB(MP(que[i].f, i)); sort(ALL(adds)); REP(i, adds.size()) { value[i+1] = adds[i].f; que[adds[i].s].f = i+1; } FOR(i, 0, q) { if(type[i] == 2) { int idx = que[i].f; where[value[idx]].PB(idx); turn_on(idx); } if(type[i] == 3) { LL val = que[i].f; // assert(where[val].size()); int idx = where[val].back(); where[val].pop_back(); turn_off(idx); } if(type[i] == 1) { LL start = que[i].f; LL end = que[i].s; int res = 0; if(start >= end){puts("0"); continue;} while(1) { if(mi[1] >= start){puts("-1"); break;} int next_pos = first_bigger(start-1); LL next_value = min(value[next_pos]+1, end); int last_add_pos = last_less_eq(start-1); auto to_add = get_segment(last_add_pos, next_value - start); if(to_add.f == -1) { puts("-1"); break; } start += to_add.f; res += to_add.s; if(start >= end) { printf("%d\n", res); break; } } rollback(); } } } |