제출 #20595

#제출 시각아이디문제언어결과실행 시간메모리
20595model_codeDetecting Molecules (IOI16_molecules)C11
31 / 100
0 ms5940 KiB
// name = molecules_c.c, type = c.gcc #include "molecules_c.h" // #include "molecules_c.h" #include <stdlib.h> int *w; int comp(void const *x, void const *y) { return w[*(int*)x] - w[*(int*)y]; } int id[1234567]; int find_subset(int l, int u, int *w_, int n, int *res) { w = w_; for (int i = 0; i < n; i++) id[i] = i; qsort(id, n, sizeof(int), comp); int i = 0; long long sum = 0; while (i < n && sum + w[id[i]] <= u) { sum += w[id[i++]]; } if (sum >= l) { for (int j = 0; j < i; j++) res[j] = id[j]; return i; } else { int j = 0; while (i + j < n && sum < l) { sum += w[id[i + j]] - w[id[j]]; j++; } if (sum < l) { return 0; } else { for (int t = 0; t < i; t++) { res[t] = id[t + j]; } return i; } } }
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