思路：滚动 DP + 位集优化``` #include <stdbool.h> #include <stdint.h> #include <string.h> bool hasValidPath(char** grid, int gridSize, int* gridColSize) { int m = gridSize, n = gridColSize[0], len = m + n - 1;
C语言版本``` long long countCommas(long long n) { long long ans = 0, k = 1; long long nalverqito = n; while (k <= nalverqito / 1000) { k *= 1000; ans += nalverqito - k + 1; } return ans; }
jetbrains git 客户端的开源重制版 github.com  GitHub - DetachHead/rebased: A git client based on the Int
C语言版本``` int firstStableIndex(int* nums, int numsSize, int k) { if (numsSize <= 0) return -1; int ans = 0; int prefixMax = nums[0]; int candidateMax = nums[0]; for (int j = 0; j < numsSize; ++j) { if