Submission #1093909

#TimeUsernameProblemLanguageResultExecution timeMemory
1093909KasymKRed-blue table (IZhO19_stones)C++17
100 / 100
23 ms5212 KiB
#include "bits/stdc++.h" using namespace std; #define ff first #define ss second #define all(v) v.begin(), v.end() #define ll long long #define pb push_back #define pii pair<int, int> #define pli pair<ll, int> #define pll pair<ll, ll> #define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i) #define wr puts("----------------") template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;} template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;} void solve(int green_flecks){ int n, m; scanf("%d%d", &n, &m); bool ok = 0; if(n < m){ swap(n, m); ok = 1; } vector<vector<int>> A(n, vector<int> (m, 1)); int answer = n, cnt = 0, j_ = 0; for(int ad = 0; ad < (m-1)>>1; ++ad) for(int i = 0; i < n; ++i){ A[i][j_] = 0, cnt++; if(cnt == (n>>1)+1) j_++, answer++, cnt = 0; } // wr; // for(int i = 0; i < n; ++i){ // for(int j = 0; j < m; ++j) // printf("%d", A[i][j]); // puts(""); // } // wr; // printf("%d %d %d\n", cnt, answer, j_); // wr; printf("%d\n", answer); if(ok){ for(int i = 0; i < n; ++i) for(int j = 0; j < m; ++j) A[i][j] ^= 1; for(int j = 0; j < m; ++j){ for(int i = 0; i < n; ++i) if(A[i][j]) printf("+"); else printf("-"); puts(""); } return; } for(int i = 0; i < n; ++i){ for(int j = 0; j < m; ++j) if(A[i][j]) printf("+"); else printf("-"); puts(""); } } int main(){ int tt; scanf("%d", &tt); while(tt--) solve(tt); return 0; }

Compilation message (stderr)

stones.cpp: In function 'void solve(int)':
stones.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
stones.cpp: In function 'int main()':
stones.cpp:68:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |     scanf("%d", &tt);
      |     ~~~~~^~~~~~~~~~~
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