C - Color the Ball Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Submit Status Description There are infinite balls in a line (numbered 1 2 3 ....), and initially all of them are paint black. Now Jim use a brush paint t…

题意:给你n个球排成一行,初始都为黑色,现在给一些操作(L,R,color),给[L,R]区间内的求染上颜色color,'w'为白,'b'为黑.问最后最长的白色区间的起点和终点的位置. 解法:先离散化,为了防止离散后错误,不仅将L,R离散,还要加入L+1,L-1,R+1,R-1一起离散,这样就绝不会有问题了.然后建线段树,线段树维护四个值: 1.col  区间颜色  0 表示黑  1 表示白  -1表示无标记 2.maxi 区间内最大白区间的长度,由于白色用1表示,所以最大白区间的长度即为区间最…

Color the Ball Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3529    Accepted Submission(s): 874 Problem Description There are infinite balls in a line (numbered 1 2 3 ....), and initially al…

Color the ball Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7941    Accepted Submission(s): 4070 Problem Description N个气球排成一排,从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele便为骑上他的“小飞鸽"牌电动车从气球…

Color the ballTime Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 28415    Accepted Submission(s): 13851 Problem DescriptionN个气球排成一排,从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele便为骑上他的“小飞鸽"牌电动车从气球…

http://acm.hdu.edu.cn/showproblem.php?pid=1556 题意: N个气球,每次[a,b]之间的气球涂一次色,统计每个气球涂色的次数. 思路: 这道题目用树状数组和线段树都可以,拿这道题来入门一下线段树的区间更新. #include<iostream> #include<cstring> #include<algorithm> using namespace std; + ; int n; int ans[maxn]; struct…

Problem Description N个气球排成一排,从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele便为骑上他的“小飞鸽"牌电动车从气球a开始到气球b依次给每个气球涂一次颜色.但是N次以后lele已经忘记了第I个气球已经涂过几次颜色了,你能帮他算出每个气球被涂过几次颜色吗? Input 每个测试实例第一行为一个整数N,(N <= 100000).接下来的N行,每行包括2个整数a b(1 <= a <= b <= N).当…

#include<stdio.h> #include<string.h> ]; int main() { int n,i; int a,b; while(scanf("%d",&n)!=EOF&&n) { memset(f,,sizeof(f)); ;i<n;i++) { scanf("%d%d",&a,&b); f[a]++; f[b+]--; } ; ;i<n;i++) { m+=f[i…

http://acm.hdu.edu.cn/showproblem.php?pid=1199 Color the Ball Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5135    Accepted Submission(s): 1262 Problem Description There are infinite balls i…

Color the ball Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 13072    Accepted Submission(s): 6537 Problem Description N个气球排成一排,从左到右依次编号为1,2,3....N.每次给定2个整数a b(a <= b),lele便为骑上他的“小飞鸽"牌电动车从气…