Compilare: main.cpp:3:0: warning: ignoring #pragma optimize [-Wunknown-pragmas] #pragma optimize("O3") main.cpp: In function 'VI zoo::merge(VI, VI)': main.cpp:40:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( ; fi < a.size() || se < b.size() ; ) { ~~~^~~~~~~~~~ main.cpp:40:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( ; fi < a.size() || se < b.size() ; ) { ~~~^~~~~~~~~~ main.cpp:41:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (fi != a.size() && a[fi] < b[se] || se == b.size()) { ~~~^~~~~~~~~~~ main.cpp:41:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (fi != a.size() && a[fi] < b[se] || se == b.size()) { ~~~^~~~~~~~~~~ main.cpp:41:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (fi != a.size() && a[fi] < b[se] || se == b.size()) { main.cpp:44:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (se != b.size() && a[fi] > b[se] || fi == a.size()) { ~~~^~~~~~~~~~~ main.cpp:44:74: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if (se != b.size() && a[fi] > b[se] || fi == a.size()) { ~~~^~~~~~~~~~~ main.cpp:44:51: warning: suggest parentheses around '&&' within '||' [-Wparentheses] } else if (se != b.size() && a[fi] > b[se] || fi == a.size()) { main.cpp: In function 'int main()': main.cpp:112:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n) ; points.resize(n + 1) ; ^ main.cpp:114:45: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d", &x, &y) ; points[i] = Point(x, y) ; ^ main.cpp:124:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &querys) ; ^ main.cpp:128:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d ", &x, &y) ; leftDown = Point(x, y) ; ^ main.cpp:129:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d ", &x, &y) ; rightUp = Point(x, y) ; ^