Problem Link : http://www.lightoj.com/volume_showproblem.php?problem=1080
/* +-+ +-+ +-+ |R| |.| |S| +-+ +-+ +-+ */ #include <bits/stdc++.h> #define pii pair <int,int> #define sc scanf #define pf printf #define Pi 2*acos(0.0) #define ms(a,b) memset(a, b, sizeof(a)) #define pb(a) push_back(a) #define MP make_pair #define db double #define ll long long #define EPS 10E-10 #define ff first #define ss second #define sqr(x) (x)*(x) #define D(x) cout<<#x " = "<<(x)<<endl #define VI vector <int> #define DBG pf("Hi\n") #define MOD 100007 #define MAX 10000 #define CIN ios_base::sync_with_stdio(0); cin.tie(0) #define SZ(a) (int)a.size() #define sf(a) scanf("%d",&a) #define sfl(a) scanf("%lld",&a) #define sff(a,b) scanf("%d %d",&a,&b) #define sffl(a,b) scanf("%lld %lld",&a,&b) #define sfff(a,b,c) scanf("%d %d %d",&a,&b,&c) #define sfffl(a,b,c) scanf("%lld %lld %lld",&a,&b,&c) #define loop(i,n) for(int i=0;i<n;i++) #define REP(i,a,b) for(int i=a;i<b;i++) #define TEST_CASE(t) for(int z=1;z<=t;z++) #define PRINT_CASE printf("Case %d:\n",z) #define all(a) a.begin(),a.end() #define intlim 2147483648 #define inf 1000000 #define ull unsigned long long using namespace std; /*----------------------Graph Moves----------------*/ //const int fx[]={+1,-1,+0,+0}; //const int fy[]={+0,+0,+1,-1}; //const int fx[]={+0,+0,+1,-1,-1,+1,-1,+1}; // Kings Move //const int fy[]={-1,+1,+0,+0,+1,+1,-1,-1}; // Kings Move //const int fx[]={-2, -2, -1, -1, 1, 1, 2, 2}; // Knights Move //const int fy[]={-1, 1, -2, 2, -2, 2, -1, 1}; // Knights Move /*------------------------------------------------*/ /*-----------------------Bitmask------------------*/ //int Set(int N,int pos){return N=N | (1<<pos);} //int reset(int N,int pos){return N= N & ~(1<<pos);} //bool check(int N,int pos){return (bool)(N & (1<<pos));} /*------------------------------------------------*/ struct data { int sum,prop; }; data tree[3*100005]; char str[100005]; void update(int n, int b, int e, int i, int j) { if(i>e || j<b) return; if(b>=i && e<=j) { // tree[n].sum+=1; tree[n].prop+=1; return; } int l=n*2; int r=l+1; int mid=(b+e)/2; update(l,b,mid,i,j); update(r,mid+1,e,i,j); } void init(int n, int b, int e) { if(b==e) { tree[n].prop=tree[n].sum=0; return; } int l=n*2; int r=l+1; int mid=(b+e)/2; init(l,b,mid); init(r,mid+1,e); tree[n].prop=tree[n].sum=0; } int query(int n, int b, int e, int i, int carry) { if(e<i || b>i) return 0; if(b==e && b!=i) return 0; if(b==e && b==i) { return carry+tree[n].prop; } int l=n*2; int r=l+1; int mid=(b+e)/2; int p1=0,p2=0; p1=query(l,b,mid,i,carry+tree[n].prop); p2=query(r,mid+1,e,i,carry+tree[n].prop); return p1+p2; } int main() { // CIN; // freopen("in.txt","r",stdin); ///freopen("out.txt","w",stdout); int t; sf(t); getchar(); TEST_CASE(t) { sc("%s",str+1); int l=strlen(str+1); int n; init(1,1,l); sf(n); PRINT_CASE; while(n--) { char ch; int a,b; getchar(); sc("%c",&ch); if(ch=='I') { sff(a,b); update(1,1,l,a,b); } if(ch=='Q') { sf(a); b=query(1,1,l,a,0); if(b & 1) { if(str[a]=='0') pf("1\n"); else pf("0\n"); } else pf("%c\n",str[a]); } } } return 0; }