#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
typedef pair<int, pi> pii;
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
#define fax(i, a) for (int i = 0; i < (a); i++)
#define f0x(i, a, b) for (int i = (a); i < (b); i++)
#define f0xd(i,a,b) for (int i = (b)-1; i >= (a); i--)
#define faxd(i,a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto& a : x)
#define memeset memset
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rsz resize
template<class T> void ckmin(T &a, T b) { a = min(a, b); }
template<class T> void ckmax(T &a, T b) { a = max(a, b); }
template <class T, int ...Ns> struct BIT {
T val = 0;
void upd(T v) { val += v; }
T query() { return val; }
};
template <class T, int N, int... Ns> struct BIT<T, N, Ns...> {
BIT<T,Ns...> bit[N + 1];
template<typename... Args> void upd(int pos, Args... args) {
for (; pos <= N; pos += (pos&-pos)) bit[pos].upd(args...);
}
template<typename... Args> T sum(int r, Args... args) {
T res = 0; for (; r; r -= (r&-r)) res += bit[r].query(args...);
return res;
}
template<typename... Args> T query(int l, int r, Args... args) {
return sum(r,args...)-sum(l-1,args...);
}
};
namespace input {
template<class T> void re(complex<T>& x);
template<class T1, class T2> void re(pair<T1,T2>& p);
template<class T> void re(vector<T>& a);
template<class T, size_t SZ> void re(array<T,SZ>& a);
template<class T> void re(T& x) { cin >> x; }
void re(double& x) { string t; re(t); x = stod(t); }
void re(ld& x) { string t; re(t); x = stold(t); }
template<class T, class... Ts> void re(T& t, Ts&... ts) {
re(t); re(ts...);
}
template<class T> void re(complex<T>& x) { T a,b; re(a,b); x = cd(a,b); }
template<class T1, class T2> void re(pair<T1,T2>& p) { re(p.f,p.s); }
template<class T> void re(vector<T>& a) { fax(i,sz(a)) re(a[i]); }
template<class T, size_t SZ> void re(array<T,SZ>& a) { fax(i,SZ) re(a[i]); }
}
using namespace input;
namespace output {
void pr(int x) { cout << x; }
void pr(long x) { cout << x; }
void pr(ll x) { cout << x; }
void pr(unsigned x) { cout << x; }
void pr(unsigned long x) { cout << x; }
void pr(unsigned long long x) { cout << x; }
void pr(float x) { cout << x; }
void pr(double x) { cout << x; }
void pr(ld x) { cout << x; }
void pr(char x) { cout << x; }
void pr(const char* x) { cout << x; }
void pr(const string& x) { cout << x; }
void pr(bool x) { pr(x ? "true" : "false"); }
template<class T1, class T2> void pr(const pair<T1,T2>& x);
template<class T> void pr(const T& x);
template<class T, class... Ts> void pr(const T& t, const Ts&... ts) {
pr(t); pr(ts...);
}
template<class T1, class T2> void pr(const pair<T1,T2>& x) {
pr("{",x.f,", ",x.s,"}");
}
template<class T> void pr(const T& x) {
pr("{"); // const iterator needed for vector<bool>
bool fst = 1; for (const auto& a: x) pr(!fst?", ":"",a), fst = 0;
pr("}");
}
void ps() { pr("\n"); } // print w/ spaces
template<class T, class... Ts> void ps(const T& t, const Ts&... ts) {
pr(t); if (sizeof...(ts)) pr(" "); ps(ts...);
}
void pc() { pr("]\n"); } // debug w/ commas
template<class T, class... Ts> void pc(const T& t, const Ts&... ts) {
pr(t); if (sizeof...(ts)) pr(", "); pc(ts...);
}
#define dbg(x...) pr("[",#x,"] = ["), pc(x);
}
using namespace output;
namespace io {
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
void setIO(string s = "") {
ios_base::sync_with_stdio(0); cin.tie(0); // fast I/O
if (sz(s)) { setIn(s+".in"), setOut(s+".out"); } // for USACO
}
}
using namespace io;
const int MOD = 1000000007; // 998244353
const ll INF = 1e18;
const int MX = 1005;
const ld PI = 4*atan((ld)1);
void solve(){
int r,c; re(r,c);
int v = max(r,c);
int tot = max(r,c)*(ceil((double)min(r,c)/(double)2)-1);
int need = ((double)max(r,c)/(double)2)+1;
//cout << v << " " << tot << " " << need << endl;
//pr(v + (tot/need));
cout << (v+(tot/need)) << endl;
char syma = '+'; char symb = '-'; bool swp = false;
if(c > r) {
swap(r,c);
swap(syma, symb);
swp = true;
}
char grid[r+1][c+1];
int cnt[c+1];
fax(i,c) cnt[i] = 0;
fax(i,r){
fax(j,(c/2)+1){
grid[i][j] = syma;
}
f0x(j,(c/2)+1,c){
grid[i][j] = symb;
}
}
int cx = 0; int cy = 0;
f0x(i,(c/2)+1,c){
fax(j,r){
swap(grid[cx][cy], grid[j][i]);
cnt[cy]++;
cx++;
if(cnt[cy] >= (r/2)+1){
cy++;
}
if(cx >= r){
cx = 0;
}
if(cy >= c){
goto outer;
}
}
}
outer:
if(!swp){
fax(i,r){
fax(j,c){
pr(grid[i][j]);
}
pr("\n");
}
}
else{
fax(i,c){
fax(j,r){
pr(grid[j][i]);
}
pr("\n");
}
}
}
int main() {
setIO();
int T; re(T);
while(T--){
solve();
}
}
Compilation message
stones.cpp: In function 'void io::setIn(std::__cxx11::string)':
stones.cpp:133:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setIn(string s) { freopen(s.c_str(),"r",stdin); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~
stones.cpp: In function 'void io::setOut(std::__cxx11::string)':
stones.cpp:134:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
void setOut(string s) { freopen(s.c_str(),"w",stdout); }
~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
6 ms |
376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
35 ms |
1432 KB |
Output is correct |
| 2 |
Correct |
33 ms |
1912 KB |
Output is correct |
| 3 |
Correct |
30 ms |
2040 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
34 ms |
1400 KB |
Output is correct |
| 2 |
Correct |
31 ms |
1660 KB |
Output is correct |
| 3 |
Correct |
26 ms |
1400 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
6 ms |
376 KB |
Output is correct |
| 4 |
Correct |
7 ms |
376 KB |
Output is correct |
| 5 |
Correct |
35 ms |
1432 KB |
Output is correct |
| 6 |
Correct |
33 ms |
1912 KB |
Output is correct |
| 7 |
Correct |
30 ms |
2040 KB |
Output is correct |
| 8 |
Correct |
34 ms |
1400 KB |
Output is correct |
| 9 |
Correct |
31 ms |
1660 KB |
Output is correct |
| 10 |
Correct |
26 ms |
1400 KB |
Output is correct |
| 11 |
Correct |
13 ms |
632 KB |
Output is correct |
| 12 |
Correct |
29 ms |
1516 KB |
Output is correct |
| 13 |
Correct |
28 ms |
1528 KB |
Output is correct |
| 14 |
Correct |
24 ms |
1144 KB |
Output is correct |
| 15 |
Correct |
35 ms |
2296 KB |
Output is correct |
| 16 |
Correct |
27 ms |
1788 KB |
Output is correct |
| 17 |
Correct |
22 ms |
1016 KB |
Output is correct |
