Compilare: main.cpp: In function 'int main()': main.cpp:16:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(j=2; j<i; j++) ^~~ main.cpp:18:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if(comb[i][j]>=r) ^~ main.cpp:7:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] { freopen("kmax.in", "r", stdin); ^ main.cpp:8:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("kmax.out", "w", stdout); ^ main.cpp:10:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &k, &r); ^ main.cpp:18:25: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized] if(comb[i][j]>=r) ~~~~~~~~~^