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Cod sursa(job #940448)
#include <stdio.h>
#include <algorithm>
#include <vector>
using namespace std;
#define NMAX 100010
#define MOD 666013
#define ff first
#define ss second
#define RED(x) if (x >= MOD) x -= MOD; if (x < 0) x += MOD;
int N, M, K;
int a[NMAX];
int poz[NMAX];
int jeg[NMAX];
int nap[NMAX];
int aib[NMAX];
int naptot[NMAX];
pair <pair<int, int>, int> inter[NMAX];
inline int lsb(int x) { return (x & (x-1) ^ x); }
char ap[NMAX];
int rez[NMAX];
int query(int x)
{
int rez = 0;
while (x) {
rez += aib[x]; RED(rez);
x -= lsb(x);
}
return rez;
}
void update(int x, int sum)
{
// printf("update - %d %d\n", x, sum);
while (x <= N) {
aib[x] += sum; RED(aib[x]);
x += lsb(x);
}
}
int main()
{
int i;
freopen("distincte.in", "r", stdin);
freopen("distincte.out", "w", stdout);
scanf("%d %d %d", &N, &K, &M);
for (i = 1; i <= N; i++) {
scanf("%d", &a[i]);
if (!ap[ a[i] ]) update(i, a[i]);
ap[a[i]] = 1;
nap[ a[i] ] ++;
}
memcpy(naptot, nap, sizeof(nap));
for (i = 1; i <= N; i++) jeg[i] = nap[i] + jeg[i-1];
memset(nap, 0, sizeof(nap));
for (i = 1; i <= N; i++) {
nap[ a[i] ] ++;
poz[ jeg[a[i] - 1] + nap[a[i]] ] = i;
}
for (i = 1; i <= N; i++) nap[i] = 1;
for (i = 1; i <= M; i++) {
scanf("%d %d", &inter[i].ff.ff, &inter[i].ff.ss);
inter[i].ss = i;
}
sort(inter + 1, inter + M + 1);
int ant = 1, j;
for (i = 1; i <= M; i++) {
for (j = ant; j < inter[i].ff.ff; j++) {
update(j, -a[j]);
nap[a[j]]++;
if (nap[ a[j] ] <= naptot[ a[j] ]) update(poz[ jeg[a[j]-1] + nap[a[j]] ], a[j]);
}
// printf("%d\n", query( inter[i].ff.ss ));
rez[ inter[i].ss ] = query( inter[i].ff.ss ) - query( inter[i].ff.ff - 1 );
// printf("%d %d - %d\n", inter[i].ff.ff, inter[i].ff.ss, rez[ inter[i].ss ]);
RED( rez[ inter[i].ss ] );
ant = inter[i].ff.ff;
}
for (i = 1; i <= M; i++) printf("%d\n", rez[i]);
fclose(stdin);
fclose(stdout);
return 0;
}