This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
#include "game.h"
#define st first
#define nd second
#define mp make_pair
#define pb push_back
#define orta ((bas+son)/2)
#define mod 1000000007
#define MAXN 20000005
using namespace std;
// #define fail(s, x...) do { \
// fprintf(stderr, s "\n", ## x); \
// exit(1); \
// } while(0)
typedef long long ll;
int n, m, son1, son, sol[MAXN], sag[MAXN], seg[MAXN], sl[MAXN], sg[MAXN];
ll val[MAXN];
ll gcd2(ll X, ll Y) {
if(X == 0 || Y == 0) {
return X + Y;
}
ll tmp;
while (X != Y && Y != 0) {
tmp = X;
X = Y;
Y = tmp % Y;
}
return X;
}
int ver(int k){
if(!k)return 0;
return (!seg[k])?seg[k] = ++son:seg[k];
}
int slver(int k){
return (!sl[k])?sl[k] = ++son:sl[k];
}
int sgver(int k){
return (!sg[k])?sg[k] = ++son:sg[k];
}
int solver(int k){
return (!sol[k])?sol[k] = ++son1:sol[k];
}
int sagver(int k){
return (!sag[k])?sag[k] = ++son1:sag[k];
}
ll qu2(int k, int bas, int son, int x, int y){
if(!k or bas > y or son < x)
return 0;
if(bas >= x and son <= y)
return val[k];
return gcd2(qu2(sl[k], bas, orta, x, y), qu2(sg[k], orta + 1, son, x, y));
}
ll qu1(int k, int bas, int son, int x, int y, int xx, int yy){
if(!k or bas > y or son < x)
return 0;
if(bas >= x and son <= y)
return qu2(seg[k], 1, m, xx, yy);
return gcd2(qu1(sol[k], bas, orta, x, y, xx, yy), qu1(sag[k], orta + 1, son, x, y, xx, yy));
}
void up2(int k, int bas, int son, int x, ll z){
if(bas == son){
val[k] = z;
return;
}
if(x <= orta){
if(!sl[k]){
int kk = slver(k);
int bbas = bas, sson = orta;
while(bbas < sson){
val[kk] = z;
if(x <= ((bbas+sson)/2))
kk = slver(kk), sson = ((bbas+sson)/2);
else
kk = sgver(kk), bbas = ((bbas+sson)/2) + 1;
}
val[kk] = z;
} else
up2(slver(k), bas, orta, x, z);
}
else{
if(!sg[k]){
int kk = sgver(k);
int bbas = orta + 1, sson = son;
while(bbas < sson){
val[kk] = z;
if(x <= ((bbas+sson)/2))
kk = slver(kk), sson = ((bbas+sson)/2);
else
kk = sgver(kk), bbas = ((bbas+sson)/2) + 1;
}
val[kk] = z;
} else
up2(sgver(k), orta + 1, son, x, z);
}
val[k] = gcd2(val[sl[k]], val[sg[k]]);
}
void up1(int k, int bas, int son, int x, int y, ll z){
if(bas == son){
up2(ver(k), 1, m, y, z);
return;
}
if(x <= orta)
up1(solver(k), bas, orta, x, y, z);
else
up1(sagver(k), orta + 1, son, x, y, z);
z = gcd2(qu2(ver(sol[k]), 1, m, y, y), qu2(ver(sag[k]), 1, m, y, y));
up2(ver(k), 1, m, y, z);
}
void init(int R, int C) {
n = R;m = C;
son1++;
}
void update(int p, int q, ll k) {
up1(1, 1, n, p + 1, q + 1, k);
}
ll calculate(int p, int q, int u, int v) {
return qu1(1, 1, n, p+1, u+1, q+1, v+1);
}
// int main() {
// int R, C, N;
// int P, Q, U, V;
// long long K;
// int i, type;
// int res;
// FILE *f = fopen("in.txt", "r");
// if (!f)
// fail("Failed to open input file.");
// res = fscanf(f, "%d", &R);
// res = fscanf(f, "%d", &C);
// res = fscanf(f, "%d", &N);
// init(R, C);
// for (i = 0; i < N; i++) {
// res = fscanf(f, "%d", &type);
// if (type == 1) {
// res = fscanf(f, "%d%d%lld", &P, &Q, &K);
// update(P, Q, K);
// } else if (type == 2) {
// res = fscanf(f, "%d%d%d%d", &P, &Q, &U, &V);
// printf("%lld\n", calculate(P, Q, U, V));
// } else
// fail("Invalid action type in input file.");
// }
// fclose(f);
// return 0;
// }
Compilation message (stderr)
grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
int res;
^~~
game.cpp:11:1: warning: multi-line comment [-Wcomment]
// #define fail(s, x...) do { \
^
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