Compilare: main.cpp: In function 'int main()': main.cpp:125:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < vertical.size() ; i ++) ~~^~~~~~~~~~~~~~~~~ main.cpp:155:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 1 ; i < orizontal.size() ; i ++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:163:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0 ; i < vertical.size() ; i ++) ~~^~~~~~~~~~~~~~~~~ main.cpp:164:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < orizontal.size() ; j ++) ~~^~~~~~~~~~~~~~~~~~ main.cpp:44:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("parc.in" , "r" , stdin); ^ main.cpp:45:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("parc.out" , "w" , stdout); ^ main.cpp:51:75: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d" , &xparc , &yparc , &xs , &ys , &xf , &yf , &n); ^ main.cpp:70:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &tx , &ty); ^ main.cpp:74:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d" , &m); ^ main.cpp:77:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d" , &tx , &ty); ^