Compilare: main.cpp: In function 'int main()': main.cpp:25:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(1>Max)Max=1; V=0; ^~ main.cpp:25:25: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' if(1>Max)Max=1; V=0; ^ main.cpp:18:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bile.in", "r", stdin); ^ main.cpp:19:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("bile.out", "w", stdout); ^ main.cpp:20:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); Pair a; a.first=a.second=-1; Pair p; ^ main.cpp:21:74: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=N*N; ++i) {scanf("%d%d", &List[i].first, &List[i].second); Head[List[i].first][List[i].second]=a; Count[List[i].first][List[i].second]=1;} ^