Compilare: main.cpp: In function 'int Binary_Search(int, int, std::vector<cell>)': main.cpp:29:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (step + ret < v.size() && v[step + ret].first <= x) { ~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'int Binary_Search_lines(int, std::vector<cell>)': main.cpp:39:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (step + ret < v.size() && v[step + ret].second <= y) { ~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'bool checkPosition(int, int, int, int)': main.cpp:70:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (dpPos + 1 < dp[princ].size() && dp[princ][dpPos].first <= x && dp[princ][dpPos + 1].type == 1 && dp[princ][dpPos + 1].first > x) { ~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:76:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (dsPos + 1 < ds[secund].size() && ds[secund][dsPos].first <= x && ds[secund][dsPos + 1].type == 1 && ds[secund][dsPos + 1].first > x) { ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:82:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (linePos + 1 < lines[x].size() && lines[x][linePos].second <= y && lines[x][linePos + 1].type == 1 && lines[x][linePos + 1].second > y) { ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:88:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (colPos + 1 < col[y].size() && col[y][colPos].first <= x && col[y][colPos + 1].type == 1 && col[y][colPos + 1].first > x) { ~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:97:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d %d", &n, &d, &k) ; ^ main.cpp:103:55: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &xQueen, &yQueen) ; ^ main.cpp:115:53: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &xHole, &yHole) ; ^